double complex function Fsc6(j1,j2,j3,j4,j5,j6,za,zb) 
      implicit none
      include 'constants.f'
      include 'zprods_decl.f'
      include 'sprods_com.f'
      integer j1,j2,j3,j4,j5,j6
      double complex L0,L1,Lsm1_2mh,I3m,Lnrat
      double precision t  
      Fsc6= 
     .-(za(j3,j5)*(-(za(j2,j5)*za(j3,j4))+za(j2,j3)*za(j4,j5)))/
     .(2d0*za(j1,j4)*za(j3,j4)*za(j5,j6)*
     .(-(za(j1,j4)*zb(j1,j3))-za(j2,j4)*zb(j2,j3)))+
     .(Lsm1_2mh(s(j3,j4),t(j1,j2,j3),s(j1,j2),s(j5,j6))*
     .(za(j2,j4)*zb(j1,j2)+za(j3,j4)*zb(j1,j3))*
     .(-(za(j1,j5)*zb(j1,j3))-za(j2,j5)*zb(j2,j3))**2)/
     .(za(j5,j6)*zb(j2,j3)*(-(za(j1,j4)*zb(j1,j3))-za(j2,j4)*zb(j2,j3))*
     .*3)-
     .(L0(-t(j1,j2,j3),-s(j1,j2))*za(j2,j3)*zb(j1,j2)*
     .(-(za(j1,j5)*zb(j1,j3))-za(j2,j5)*zb(j2,j3))**2)/
     .(s(j1,j2)*za(j5,j6)*zb(j2,j3)*
     .(-(za(j1,j4)*zb(j1,j3))-za(j2,j4)*zb(j2,j3))**2)+
     .(Lnrat(-s(j1,j2),-s(j5,j6))*za(j4,j5)*
     .(-(za(j1,j3)*zb(j1,j4))-za(j2,j3)*zb(j2,j4))*
     .(-(za(j2,j5)*zb(j2,j4))-za(j3,j5)*zb(j3,j4)))/
     .(2d0*s(j3,j4)*za(j5,j6)*(-(za(j1,j4)*zb(j1,j3))-za(j2,j4)*zb(j2,j3
     .))*
     .(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j4)))-
     .(za(j3,j5)*((-s(j1,j2)-s(j3,j4)+s(j5,j6))*za(j2,j4)+
     .2d0*za(j1,j2)*za(j3,j4)*zb(j1,j3))*zb(j4,j6))/
     .((s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-2d0*s(j1,j2)*s(j5,
     .j6)-
     .2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2)*za(j1,j4)*
     .(-(za(j1,j4)*zb(j1,j3))-za(j2,j4)*zb(j2,j3)))-
     .(za(j3,j5)*((-s(j1,j2)-s(j3,j4)+s(j5,j6))*zb(j1,j3)+
     .2d0*za(j2,j4)*zb(j1,j2)*zb(j3,j4))*zb(j4,j6))/
     .((s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-2d0*s(j1,j2)*s(j5,
     .j6)-
     .2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2)*zb(j2,j3)*
     .(-(za(j1,j4)*zb(j1,j3))-za(j2,j4)*zb(j2,j3)))
     
      Fsc6=Fsc6+
     .(za(j1,j3)*(-((za(j3,j5)*(-((za(j2,j5)*
     .(-((s(j1,j2)-s(j3,j4)-s(j5,j6))*za(j1,j3)*
     .zb(j1,j2))+
     .(-s(j1,j2)+s(j3,j4)-s(j5,j6))*za(j3,j4)*zb(j2,j4)
     .))/za(j5,j6))+zb(j1,j6)*((-s(j1,j2)-s(j3,j4)+s(j5,j6))*za(j1,j3)+
     .2d0*za(j1,j2)*za(j3,j4)*zb(j2,j4))))/za(j3,j4))+
     .(zb(j4,j6)*(-(za(j2,j5)*
     .((-s(j1,j2)-s(j3,j4)+s(j5,j6))*zb(j2,j4)+
     .2d0*za(j1,j3)*zb(j1,j2)*zb(j3,j4)))-
     .(zb(j1,j6)*((s(j1,j2)-s(j3,j4)-s(j5,j6))*za(j1,j2)*
     .zb(j2,j4)-
     .(-s(j1,j2)+s(j3,j4)-s(j5,j6))*za(j1,j3)*zb(j3,j4)))/
     .zb(j5,j6)))/zb(j3,j4)))/
     .(2d0*(s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-2d0*s(j1,j2)*s
     .(j5,j6)-
     .2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2)*za(j1,j4)*
     .(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j4)))+
     .(zb(j2,j4)*(-((za(j3,j5)*((za(j2,j5)*
     .(-((s(j1,j2)-s(j3,j4)-s(j5,j6))*za(j1,j3)*
     .zb(j1,j2))+
     .(-s(j1,j2)+s(j3,j4)-s(j5,j6))*za(j3,j4)*zb(j2,j4)))/
     .za(j5,j6)-zb(j1,j6)*
     .((-s(j1,j2)-s(j3,j4)+s(j5,j6))*za(j1,j3)+
     .2d0*za(j1,j2)*za(j3,j4)*zb(j2,j4))))/za(j3,j4))+
     .(zb(j4,j6)*(za(j2,j5)*
     .((-s(j1,j2)-s(j3,j4)+s(j5,j6))*zb(j2,j4)+
     .2d0*za(j1,j3)*zb(j1,j2)*zb(j3,j4))+
     .(zb(j1,j6)*((s(j1,j2)-s(j3,j4)-s(j5,j6))*za(j1,j2)*
     .zb(j2,j4)-
     .(-s(j1,j2)+s(j3,j4)-s(j5,j6))*za(j1,j3)*zb(j3,j4)))/
     .zb(j5,j6)))/zb(j3,j4)))/
     .(2d0*(s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-2d0*s(j1,j2)*s
     .(j5,j6)-
     .2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2)*zb(j2,j3)*
     .(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j4)))
     
      Fsc6=Fsc6-
     .(((s(j1,j2)-s(j3,j4)-s(j5,j6))*za(j2,j4)*zb(j1,j2)-
     .(-s(j1,j2)+s(j3,j4)-s(j5,j6))*za(j3,j4)*zb(j1,j3))*
     .((za(j3,j5)**2*zb(j3,j4))/za(j5,j6)+
     .(za(j3,j4)*zb(j4,j6)**2)/zb(j5,j6)))/
     .(2d0*(s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-2d0*s(j1,j2)*s
     .(j5,j6)-
     .2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2)*za(j3,j4)*zb(j2,j3)*
     .(-(za(j1,j4)*zb(j1,j3))-za(j2,j4)*zb(j2,j3)))+
     .((-((s(j1,j2)-s(j3,j4)-s(j5,j6))*za(j1,j2)*zb(j1,j3))+
     .(-s(j1,j2)+s(j3,j4)-s(j5,j6))*za(j2,j4)*zb(j3,j4))*
     .((za(j3,j5)**2*zb(j3,j4))/za(j5,j6)+
     .(za(j3,j4)*zb(j4,j6)**2)/zb(j5,j6)))/
     .(2d0*(s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-2d0*s(j1,j2)*s
     .(j5,j6)-
     .2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2)*za(j1,j4)*
     .(-(za(j1,j4)*zb(j1,j3))-za(j2,j4)*zb(j2,j3))*zb(j3,j4))-
     .(L0(-t(j1,j2,j4),-s(j1,j2))*za(j1,j2)*zb(j1,j4)*
     .(-(za(j1,j4)*zb(j1,j6))-za(j2,j4)*zb(j2,j6))**2)/
     .(s(j1,j2)*za(j1,j4)*(-(za(j1,j4)*zb(j1,j3))-za(j2,j4)*zb(j2,j3))**
     .2*
     .zb(j5,j6))-(Lsm1_2mh(s(j3,j4),t(j1,j2,j4),s(j1,j2),s(j5,j6))*
     .(-(za(j1,j4)*zb(j1,j6))-za(j2,j4)*zb(j2,j6))**2*
     .(-(za(j1,j2)*zb(j1,j3))-za(j2,j4)*zb(j3,j4)))/
     .(za(j1,j4)*(-(za(j1,j4)*zb(j1,j3))-za(j2,j4)*zb(j2,j3))**3*zb(j5,j
     .6))-
     .((zb(j1,j6)*zb(j3,j4)+zb(j1,j4)*zb(j3,j6))*zb(j4,j6))/
     .(2d0*zb(j2,j3)*(-(za(j1,j4)*zb(j1,j3))-za(j2,j4)*zb(j2,j3))*zb(j3,
     .j4)*
     .zb(j5,j6))-(Lnrat(-s(j1,j2),-s(j5,j6))*
     .(-(za(j1,j3)*zb(j1,j4))-za(j2,j3)*zb(j2,j4))*zb(j3,j6)*
     .(-(za(j1,j3)*zb(j1,j6))+za(j3,j4)*zb(j4,j6)))/
     .(2d0*s(j3,j4)*(-(za(j1,j4)*zb(j1,j3))-za(j2,j4)*zb(j2,j3))*
     .(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j4))*zb(j5,j6))

      Fsc6=Fsc6-
     .(Lnrat(-s(j1,j2),-s(j5,j6))*za(j1,j2)*
     .((-6d0*zb(j1,j2)*((-s(j1,j2)-s(j3,j4)+s(j5,j6))*za(j2,j4)+
     .2d0*za(j1,j2)*za(j3,j4)*zb(j1,j3))*
     .(-(za(j1,j3)*zb(j1,j4))-za(j2,j3)*zb(j2,j4))*
     .(-(za(j1,j5)*zb(j1,j6))-za(j2,j5)*zb(j2,j6)))/
     .(s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-2d0*s(j1,j2)*s(j5,j
     .6)-
     .2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2)**2+
     .((-(za(j1,j4)*zb(j1,j6))-za(j2,j4)*zb(j2,j6))*
     .(-(zb(j1,j6)*zb(j3,j4))-zb(j1,j4)*zb(j3,j6)))/
     .((-(za(j1,j4)*zb(j1,j3))-za(j2,j4)*zb(j2,j3))*zb(j3,j4)*
     .zb(j5,j6))+(-((za(j3,j5)*
     .(2d0*((-s(j1,j2)+s(j3,j4)-s(j5,j6))*za(j4,j5)*
     .zb(j1,j4)+
     .(-s(j1,j2)-s(j3,j4)+s(j5,j6))*za(j5,j6)*zb(j1,j6))
     .-za(j3,j5)*(za(j2,j4)*zb(j1,j2)+za(j3,j4)*zb(j1,j3))*zb(j3,j4)))/
     .za(j5,j6))-((s(j1,j2)-s(j3,j4)-s(j5,j6))*za(j2,j4)*
     .zb(j1,j2)*(za(j3,j5)*zb(j3,j6)-za(j4,j5)*zb(j4,j6)))/
     .(-(za(j1,j4)*zb(j1,j3))-za(j2,j4)*zb(j2,j3))-
     .(za(j2,j3)*zb(j1,j2)*
     .(-(za(j1,j4)*zb(j1,j6))-za(j2,j4)*zb(j2,j6))*zb(j4,j6))/
     .zb(j5,j6)+(zb(j1,j2)*zb(j3,j6)*
     .(((s(j1,j2)-s(j3,j4)-s(j5,j6))*za(j2,j4)*
     .(-(za(j1,j3)*zb(j1,j4))-za(j2,j3)*zb(j2,j4))*
     .zb(j3,j6))/
     .(-(za(j1,j4)*zb(j1,j3))-za(j2,j4)*zb(j2,j3))-
     .(2d0*(s(j1,j2)-s(j3,j4)-s(j5,j6))*za(j2,j3)-
     .za(j1,j2)*za(j3,j4)*zb(j1,j4))*zb(j4,j6)))/
     .(zb(j3,j4)*zb(j5,j6))-
     .((s(j1,j2)-s(j3,j4)-s(j5,j6))*zb(j1,j3)*zb(j4,j6)*
     .(-(za(j1,j3)*zb(j1,j6))-za(j2,j3)*zb(j2,j6)-
     .za(j3,j5)*zb(j5,j6)))/(zb(j3,j4)*zb(j5,j6))+
     .za(j3,j5)*(-(za(j2,j4)*zb(j1,j2)*zb(j4,j6))+
     .za(j3,j5)*zb(j1,j3)*zb(j5,j6))+
     .4d0*za(j4,j5)*zb(j1,j2)*
     .(za(j2,j3)*zb(j4,j6)+
     .(za(j2,j4)*za(j3,j5)*zb(j3,j4)*zb(j5,j6))/
     .(-(za(j1,j4)*zb(j1,j3))-za(j2,j4)*zb(j2,j3))))/
     .(s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-2d0*s(j1,j2)*s(j5,j
     .6)-
     .2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2)))/
     .(2d0*za(j1,j4)*(-(za(j1,j4)*zb(j1,j3))-za(j2,j4)*zb(j2,j3)))
     
      Fsc6=Fsc6+
     .(Lnrat(-s(j1,j2),-s(j5,j6))*zb(j1,j2)*
     .(((za(j2,j5)*za(j3,j4)-za(j2,j3)*za(j4,j5))*
     .(-(za(j1,j5)*zb(j1,j3))-za(j2,j5)*zb(j2,j3)))/
     .(za(j3,j4)*za(j5,j6)*(-(za(j1,j4)*zb(j1,j3))-
     .za(j2,j4)*zb(j2,j3)))+
     .(6d0*za(j1,j2)*(-(za(j1,j3)*zb(j1,j4))-za(j2,j3)*zb(j2,j4))*
     .(-(za(j1,j5)*zb(j1,j6))-za(j2,j5)*zb(j2,j6))*
     .((-s(j1,j2)-s(j3,j4)+s(j5,j6))*zb(j1,j3)+
     .2d0*za(j2,j4)*zb(j1,j2)*zb(j3,j4)))/
     .(s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-2d0*s(j1,j2)*s(j5,j
     .6)-
     .2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2)**2+
     .(-((za(j1,j2)*za(j3,j5)*zb(j1,j4)*
     .(-(za(j1,j5)*zb(j1,j3))-za(j2,j5)*zb(j2,j3)))/za(j5,j6))
     .-(za(j1,j2)*za(j4,j5)*(((s(j1,j2)-s(j3,j4)-s(j5,j6))*za(j4,j5)*
     .zb(j1,j3)*
     .(-(za(j1,j3)*zb(j1,j4))-za(j2,j3)*zb(j2,j4)))/
     .(-(za(j1,j4)*zb(j1,j3))-za(j2,j4)*zb(j2,j3))-
     .za(j3,j5)*(2d0*(s(j1,j2)-s(j3,j4)-s(j5,j6))*zb(j1,j4)-
     .za(j2,j3)*zb(j1,j2)*zb(j3,j4))))/(za(j3,j4)*za(j5,j6))
     .+((s(j1,j2)-s(j3,j4)-s(j5,j6))*za(j1,j2)*zb(j1,j3)*
     .(-(za(j3,j5)*zb(j3,j6))+za(j4,j5)*zb(j4,j6)))/
     .(-(za(j1,j4)*zb(j1,j3))-za(j2,j4)*zb(j2,j3))-
     .((s(j1,j2)-s(j3,j4)-s(j5,j6))*za(j2,j4)*za(j3,j5)*
     .(-(za(j1,j5)*zb(j1,j4))-za(j2,j5)*zb(j2,j4)+
     .za(j5,j6)*zb(j4,j6)))/(za(j3,j4)*za(j5,j6))+
     .zb(j4,j6)*(za(j1,j2)*za(j3,j5)*zb(j1,j3)-
     .za(j2,j4)*za(j5,j6)*zb(j4,j6))-
     .4d0*za(j1,j2)*zb(j3,j6)*
     .(za(j3,j5)*zb(j1,j4)+
     .(za(j3,j4)*za(j5,j6)*zb(j1,j3)*zb(j4,j6))/
     .(-(za(j1,j4)*zb(j1,j3))-za(j2,j4)*zb(j2,j3)))+
     .(zb(j4,j6)*(za(j3,j4)*
     .(-(za(j1,j2)*zb(j1,j3))-za(j2,j4)*zb(j3,j4))*zb(j4,j6)
     .+2d0*((-s(j1,j2)+s(j3,j4)-s(j5,j6))*za(j2,j3)*zb(j3,j6)-
     .(-s(j1,j2)-s(j3,j4)+s(j5,j6))*za(j2,j5)*zb(j5,j6))))/
     .zb(j5,j6))/
     .(s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-2d0*s(j1,j2)*s(j5,j
     .6)-
     .2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2)))/
     .(2d0*zb(j2,j3)*(-(za(j1,j4)*zb(j1,j3))-za(j2,j4)*zb(j2,j3)))+
     .(L1(-s(j5,j6),-t(j1,j2,j3))*za(j4,j5)*zb(j1,j4)*zb(j4,j6))/
     .(zb(j2,j3)*(-(za(j1,j4)*zb(j1,j3))-za(j2,j4)*zb(j2,j3))*t(j1,j2,j3
     .))

      Fsc6=Fsc6-
     .(L0(-t(j1,j2,j3),-s(j5,j6))*za(j4,j5)*zb(j1,j4)*
     .(-(za(j1,j5)*zb(j1,j3))-za(j2,j5)*zb(j2,j3))*t(j1,j2,j3))/
     .(s(j5,j6)*za(j5,j6)*zb(j2,j3)*
     .(-(za(j1,j4)*zb(j1,j3))-za(j2,j4)*zb(j2,j3))**2)-
     .(Lnrat(-s(j3,j4),-s(j5,j6))*(-((za(j3,j5)*
     .(2d0*((-s(j1,j2)+s(j3,j4)-s(j5,j6))*za(j4,j5)*zb(j1,j4)+
     .(-s(j1,j2)-s(j3,j4)+s(j5,j6))*za(j5,j6)*zb(j1,j6))+
     .(za(j2,j4)*zb(j1,j2)+za(j3,j4)*zb(j1,j3))*
     .(-(za(j1,j5)*zb(j1,j4))-za(j2,j5)*zb(j2,j4)))*zb(j3,j4))/
     .za(j5,j6))+(6d0*zb(j1,j2)*
     .((-s(j1,j2)-s(j3,j4)+s(j5,j6))*za(j2,j4)+
     .2d0*za(j1,j2)*za(j3,j4)*zb(j1,j3))*
     .(-(za(j1,j3)*zb(j1,j4))-za(j2,j3)*zb(j2,j4))*
     .(-(za(j1,j5)*zb(j1,j6))-za(j2,j5)*zb(j2,j6))*zb(j3,j4))/
     .(s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-2d0*s(j1,j2)*s(j5,j
     .6)-
     .2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2)-
     .(zb(j4,j6)*(-(za(j2,j4)*zb(j1,j2)*
     .(-(za(j1,j3)*zb(j1,j6))-za(j2,j3)*zb(j2,j6))*zb(j3,j4))
     .-za(j3,j4)*zb(j1,j3)*(-(za(j1,j3)*zb(j1,j6))-za(j2,j3)*zb(j2,j6))*
     .zb(j3,j4)+3d0*(-s(j1,j2)+s(j3,j4)-s(j5,j6))*za(j3,j4)*
     .zb(j1,j3)*zb(j4,j6)+
     .2d0*za(j2,j3)*zb(j1,j2)*
     .((s(j1,j2)-s(j3,j4)-s(j5,j6))*zb(j3,j6)-
     .2d0*za(j4,j5)*zb(j3,j4)*zb(j5,j6))))/zb(j5,j6)+
     .(zb(j1,j3)*(-((za(j3,j5)*za(j4,j5)*zb(j3,j4))/za(j5,j6))-
     .(za(j3,j4)*zb(j3,j6)*zb(j4,j6))/zb(j5,j6))*
     .(-s(j1,j2)**2+2d0*s(j1,j2)*s(j3,j4)-s(j3,j4)**2+
     .2d0*s(j1,j2)*s(j5,j6)+2d0*s(j3,j4)*s(j5,j6)-s(j5,j6)**2+
     .(-s(j1,j2)+s(j3,j4)-s(j5,j6))*(t(j1,j2,j3)-t(j1,j2,j4))))/
     .(-(za(j1,j4)*zb(j1,j3))-za(j2,j4)*zb(j2,j3))))/
     .(2d0*(s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-2d0*s(j1,j2)*s
     .(j5,j6)-
     .2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2)*zb(j2,j3)*
     .(-(za(j1,j4)*zb(j1,j3))-za(j2,j4)*zb(j2,j3)))
     
      Fsc6=Fsc6-
     .(I3m(s(j1,j2),s(j3,j4),s(j5,j6))*za(j1,j2)*
     .((3d0*za(j3,j4)*zb(j1,j2)*
     .(-(za(j1,j3)*zb(j1,j4))-za(j2,j3)*zb(j2,j4))*
     .(-(za(j1,j5)*zb(j1,j6))-za(j2,j5)*zb(j2,j6))*
     .(-((s(j1,j2)-s(j3,j4)-s(j5,j6))*za(j1,j2)*zb(j1,j3))+
     .(-s(j1,j2)+s(j3,j4)-s(j5,j6))*za(j2,j4)*zb(j3,j4)))/
     .(s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-2d0*s(j1,j2)*s(j5,j
     .6)-
     .2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2)**2-
     .((-(za(j1,j3)*zb(j1,j4))-za(j2,j3)*zb(j2,j4))*
     .(za(j3,j4)*zb(j1,j3)*
     .(-(za(j1,j5)*zb(j1,j6))-za(j2,j5)*zb(j2,j6))-
     .3d0*za(j2,j4)*za(j3,j5)*zb(j1,j2)*zb(j3,j6))-
     .za(j2,j3)*zb(j1,j2)*
     .((s(j1,j2)-s(j3,j4)-s(j5,j6))*za(j4,j5)-
     .za(j3,j5)*(-(za(j1,j4)*zb(j1,j3))-
     .za(j2,j4)*zb(j2,j3))-2d0*za(j3,j4)*za(j5,j6)*zb(j3,j6))*
     .zb(j4,j6)+za(j3,j5)*zb(j1,j4)*
     .(-((-s(j1,j2)+s(j3,j4)-s(j5,j6))*za(j3,j4)*zb(j3,j6))-
     .(-s(j1,j2)-s(j3,j4)+s(j5,j6))*za(j4,j5)*zb(j5,j6))+
     .(za(j2,j4)*za(j4,j5)*zb(j1,j2)*
     .(-(za(j1,j3)*zb(j1,j4)*zb(j3,j6))-
     .za(j2,j3)*zb(j2,j4)*zb(j3,j6))*(t(j1,j2,j3)-t(j1,j2,j4)))/
     .(-(za(j1,j4)*zb(j1,j3))-za(j2,j4)*zb(j2,j3)))/
     .(s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-2d0*s(j1,j2)*s(j5,j
     .6)-
     .2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2)+
     .(za(j3,j5)*zb(j1,j4)*(-(za(j1,j4)*zb(j1,j6))-
     .za(j2,j4)*zb(j2,j6)))/t(j1,j2,j4)))/
     .(za(j1,j4)*(-(za(j1,j4)*zb(j1,j3))-za(j2,j4)*zb(j2,j3)))

      Fsc6=Fsc6+
     .(L1(-s(j5,j6),-t(j1,j2,j4))*za(j2,j3)*za(j3,j5)*zb(j3,j6))/
     .(za(j1,j4)*(-(za(j1,j4)*zb(j1,j3))-za(j2,j4)*zb(j2,j3))*t(j1,j2,j4
     .))+
     .(L0(-t(j1,j2,j4),-s(j5,j6))*za(j2,j3)*
     .(-(za(j1,j4)*zb(j1,j6))-za(j2,j4)*zb(j2,j6))*zb(j3,j6)*t(j1,j2,j4)
     .)/
     .(s(j5,j6)*za(j1,j4)*(-(za(j1,j4)*zb(j1,j3))-za(j2,j4)*zb(j2,j3))**
     .2*
     .zb(j5,j6))-(Lnrat(-s(j3,j4),-s(j5,j6))*
     .((6d0*za(j1,j2)*za(j3,j4)*
     .(-(za(j1,j3)*zb(j1,j4))-za(j2,j3)*zb(j2,j4))*
     .(-(za(j1,j5)*zb(j1,j6))-za(j2,j5)*zb(j2,j6))*
     .((-s(j1,j2)-s(j3,j4)+s(j5,j6))*zb(j1,j3)+
     .2d0*za(j2,j4)*zb(j1,j2)*zb(j3,j4)))/
     .(s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-2d0*s(j1,j2)*s(j5,j
     .6)-
     .2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2)+
     .(za(j3,j5)*(-(za(j1,j2)*za(j3,j4)*zb(j1,j3)*
     .(-(za(j1,j5)*zb(j1,j4))-za(j2,j5)*zb(j2,j4)))-
     .3d0*(-s(j1,j2)+s(j3,j4)-s(j5,j6))*za(j2,j4)*za(j3,j5)*
     .zb(j3,j4)-za(j2,j4)*za(j3,j4)*
     .(-(za(j1,j5)*zb(j1,j4))-za(j2,j5)*zb(j2,j4))*zb(j3,j4)-
     .2d0*za(j1,j2)*zb(j1,j4)*
     .((s(j1,j2)-s(j3,j4)-s(j5,j6))*za(j4,j5)-
     .2d0*za(j3,j4)*za(j5,j6)*zb(j3,j6))))/za(j5,j6)-
     .(za(j3,j4)*zb(j4,j6)*((-(za(j1,j3)*zb(j1,j6))-
     .za(j2,j3)*zb(j2,j6))*
     .(-(za(j1,j2)*zb(j1,j3))-za(j2,j4)*zb(j3,j4))+
     .2d0*((-s(j1,j2)+s(j3,j4)-s(j5,j6))*za(j2,j3)*zb(j3,j6)-
     .(-s(j1,j2)-s(j3,j4)+s(j5,j6))*za(j2,j5)*zb(j5,j6))))/
     .zb(j5,j6)+(za(j2,j4)*
     .(-((za(j3,j5)*za(j4,j5)*zb(j3,j4))/za(j5,j6))-
     .(za(j3,j4)*zb(j3,j6)*zb(j4,j6))/zb(j5,j6))*
     .(-s(j1,j2)**2+2d0*s(j1,j2)*s(j3,j4)-s(j3,j4)**2+
     .2d0*s(j1,j2)*s(j5,j6)+2d0*s(j3,j4)*s(j5,j6)-s(j5,j6)**2+
     .(-s(j1,j2)+s(j3,j4)-s(j5,j6))*(-t(j1,j2,j3)+t(j1,j2,j4))))/
     .(-(za(j1,j4)*zb(j1,j3))-za(j2,j4)*zb(j2,j3))))/
     .(2d0*(s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-2d0*s(j1,j2)*s
     .(j5,j6)-
     .2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2)*za(j1,j4)*
     .(-(za(j1,j4)*zb(j1,j3))-za(j2,j4)*zb(j2,j3)))

      Fsc6=Fsc6+
     .(I3m(s(j1,j2),s(j3,j4),s(j5,j6))*zb(j1,j2)*
     .((3d0*za(j1,j2)*((s(j1,j2)-s(j3,j4)-s(j5,j6))*za(j2,j4)*zb(j1,j2)-
     .(-s(j1,j2)+s(j3,j4)-s(j5,j6))*za(j3,j4)*zb(j1,j3))*
     .(-(za(j1,j3)*zb(j1,j4))-za(j2,j3)*zb(j2,j4))*
     .(-(za(j1,j5)*zb(j1,j6))-za(j2,j5)*zb(j2,j6))*zb(j3,j4))/
     .(s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-2d0*s(j1,j2)*s(j5,j
     .6)-
     .2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2)**2+
     .(za(j2,j3)*(-(za(j1,j5)*zb(j1,j3))-za(j2,j5)*zb(j2,j3))*
     .zb(j4,j6))/t(j1,j2,j3)-
     .(za(j2,j3)*((-s(j1,j2)+s(j3,j4)-s(j5,j6))*za(j4,j5)*zb(j3,j4)+
     .(-s(j1,j2)-s(j3,j4)+s(j5,j6))*za(j5,j6)*zb(j3,j6))*
     .zb(j4,j6)+(-(za(j1,j3)*zb(j1,j4))-za(j2,j3)*zb(j2,j4))*
     .(-(za(j2,j4)*(-(za(j1,j5)*zb(j1,j6))-za(j2,j5)*zb(j2,j6))*
     .zb(j3,j4))+3d0*za(j1,j2)*za(j4,j5)*zb(j1,j3)*zb(j4,j6))+
     .za(j1,j2)*za(j3,j5)*zb(j1,j4)*
     .((s(j1,j2)-s(j3,j4)-s(j5,j6))*zb(j3,j6)-
     .(-(za(j1,j4)*zb(j1,j3))-za(j2,j4)*zb(j2,j3))*zb(j4,j6)-
     .2d0*za(j4,j5)*zb(j3,j4)*zb(j5,j6))-
     .(za(j1,j2)*zb(j1,j3)*
     .(-(za(j1,j3)*za(j4,j5)*zb(j1,j4))-
     .za(j2,j3)*za(j4,j5)*zb(j2,j4))*zb(j3,j6)*
     .(-t(j1,j2,j3)+t(j1,j2,j4)))/
     .(-(za(j1,j4)*zb(j1,j3))-za(j2,j4)*zb(j2,j3)))/
     .(s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-2d0*s(j1,j2)*s(j5,j
     .6)-
     .2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2)))/
     .(zb(j2,j3)*(-(za(j1,j4)*zb(j1,j3))-za(j2,j4)*zb(j2,j3)))+
     .(za(j1,j3)*zb(j1,j4)*(za(j1,j3)*zb(j3,j6)+za(j1,j4)*zb(j4,j6))*
     .((L0(-t(j1,j3,j4),-s(j3,j4))*
     .((-2d0*za(j1,j3)*zb(j2,j6))/
     .(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j4))+
     .(-(za(j1,j3)*zb(j1,j6))+za(j3,j4)*zb(j4,j6))/t(j1,j3,j4)))/
     .s(j3,j4)-(L1(-s(j3,j4),-t(j1,j3,j4))*za(j1,j3)*zb(j1,j6))/t(j1,j3,
     .j4)**2
     .))/(2d0*za(j1,j4)*(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j4))*zb(
     .j5,j6))
     
      Fsc6=Fsc6+
     .(za(j1,j3)*za(j2,j3)*zb(j2,j6)**2*
     .((-2d0*L0(-s(j5,j6),-t(j1,j3,j4))*za(j1,j3))/
     .(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j4))+
     .(L1(-s(j5,j6),-t(j1,j3,j4))*za(j2,j3))/t(j1,j3,j4)))/
     .(2d0*za(j1,j4)*za(j3,j4)*(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j
     .4))*
     .zb(j5,j6))-(za(j1,j3)*zb(j4,j6)*
     .(-(zb(j4,j6)/zb(j3,j4))+
     .(-(za(j1,j3)*zb(j1,j6))+za(j3,j4)*zb(j4,j6))/t(j1,j3,j4)))/
     .(2d0*za(j1,j4)*(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j4))*zb(j5,
     .j6))-
     .(Lsm1_2mh(s(j1,j2),t(j1,j3,j4),s(j3,j4),s(j5,j6))*za(j1,j3)**3*zb(
     .j2,j6)**2*
     .t(j1,j3,j4))/
     .(za(j1,j4)*za(j3,j4)*(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j4))*
     .*3*
     .zb(j5,j6))+(I3m(s(j1,j2),s(j3,j4),s(j5,j6))*zb(j2,j4)*
     .((s(j1,j2)*(-(za(j1,j3)*zb(j1,j4))-za(j2,j3)*zb(j2,j4))*
     .(-(za(j1,j5)*zb(j1,j6))-za(j2,j5)*zb(j2,j6)))/2-
     .za(j1,j2)*zb(j1,j4)*((-(za(j1,j3)*zb(j1,j2))-
     .za(j3,j4)*zb(j2,j4))*
     .(-(za(j1,j5)*zb(j1,j6))-za(j2,j5)*zb(j2,j6))-
     .za(j1,j5)*za(j3,j4)*zb(j1,j2)*zb(j4,j6))-
     .(za(j1,j3)*za(j1,j5)*(-(za(j2,j3)*zb(j1,j3))-
     .za(j2,j4)*zb(j1,j4))*zb(j2,j4)*
     .(-(zb(j2,j3)*(-(za(j1,j3)*zb(j1,j6))-za(j2,j3)*zb(j2,j6)))-
     .zb(j2,j4)*(-(za(j1,j4)*zb(j1,j6))-za(j2,j4)*zb(j2,j6))-
     .zb(j1,j2)*(za(j1,j3)*zb(j3,j6)+za(j1,j4)*zb(j4,j6))))/
     .(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j4))+
     .za(j1,j5)*za(j2,j3)*(zb(j2,j4)*
     .(-(zb(j1,j3)*(-(za(j1,j3)*zb(j1,j6))-
     .za(j2,j3)*zb(j2,j6)))-
     .zb(j1,j4)*(-(za(j1,j4)*zb(j1,j6))-za(j2,j4)*zb(j2,j6))+
     .zb(j1,j2)*(za(j2,j3)*zb(j3,j6)+za(j2,j4)*zb(j4,j6)))-
     .zb(j1,j2)*(-(zb(j1,j4)*
     .(za(j1,j3)*zb(j3,j6)+za(j1,j4)*zb(j4,j6)))-
     .zb(j2,j4)*(za(j2,j3)*zb(j3,j6)+za(j2,j4)*zb(j4,j6))))+
     .(3d0*s(j1,j2)*(s(j1,j2)-s(j3,j4)-s(j5,j6))*
     .(-(za(j1,j3)*zb(j1,j4))-za(j2,j3)*zb(j2,j4))*
     .(-(za(j1,j5)*zb(j1,j6))-za(j2,j5)*zb(j2,j6))*
     .(t(j1,j3,j4)-t(j2,j3,j4)))/
     .(2d0*(s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-
     .2d0*s(j1,j2)*s(j5,j6)-2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2))))/
     .((s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-2d0*s(j1,j2)*s(j5,
     .j6)-
     .2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2)*zb(j2,j3)*
     .(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j4)))
     
      Fsc6=Fsc6+
     .(Lnrat(-s(j3,j4),-s(j5,j6))*zb(j2,j4)*
     .(-2d0*(-(za(j1,j3)*zb(j1,j4))+za(j2,j3)*zb(j2,j4))*
     .(-(za(j1,j5)*zb(j1,j6))-za(j2,j5)*zb(j2,j6))+
     .4d0*(-(za(j1,j2)*za(j3,j5)*zb(j1,j4)*zb(j2,j6))+
     .za(j1,j3)*za(j2,j5)*zb(j1,j2)*zb(j4,j6))+
     .(-(za(j1,j3)*zb(j1,j4))-za(j2,j3)*zb(j2,j4)+
     .(4d0*s(j5,j6)*za(j1,j3)*zb(j2,j4))/
     .(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j4)))*
     .(-((za(j1,j5)*za(j2,j5)*zb(j1,j2))/za(j5,j6))+
     .(za(j1,j2)*zb(j1,j6)*zb(j2,j6))/zb(j5,j6))-
     .(-s(j1,j2)+s(j3,j4)-s(j5,j6))*
     .((za(j1,j5)*za(j3,j5)*zb(j1,j4))/za(j5,j6)+
     .(2d0*za(j1,j5)*zb(j2,j4)*
     .(za(j1,j5)*za(j2,j3)*zb(j1,j2)-
     .za(j1,j5)*za(j3,j4)*zb(j1,j4)-
     .za(j2,j3)*za(j5,j6)*zb(j2,j6)))/
     .(za(j5,j6)*(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j4)))-
     .(za(j2,j3)*zb(j2,j6)*zb(j4,j6))/zb(j5,j6))+
     .(8d0*s(j1,j2)*za(j1,j5)*za(j3,j5)*zb(j2,j4)*zb(j5,j6))/
     .(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j4))+
     .(3d0*(-s(j1,j2)-s(j3,j4)+s(j5,j6))*
     .(-(za(j1,j3)*zb(j1,j4))-za(j2,j3)*zb(j2,j4))*
     .(-(za(j1,j5)*zb(j1,j6))-za(j2,j5)*zb(j2,j6))*
     .(t(j1,j3,j4)-t(j2,j3,j4)))/
     .(s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-2d0*s(j1,j2)*s(j5,j
     .6)-
     .2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2)))/
     .(2d0*(s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-2d0*s(j1,j2)*s
     .(j5,j6)-
     .2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2)*zb(j2,j3)*
     .(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j4)))-
     .(za(j2,j3)*zb(j2,j4)*(za(j3,j5)*zb(j2,j3)+za(j4,j5)*zb(j2,j4))*
     .((L0(-t(j2,j3,j4),-s(j3,j4))*
     .((-2d0*za(j1,j5)*zb(j2,j4))/
     .(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j4))+
     .(-(za(j2,j5)*zb(j2,j4))-za(j3,j5)*zb(j3,j4))/t(j2,j3,j4)))/
     .s(j3,j4)-(L1(-s(j3,j4),-t(j2,j3,j4))*za(j2,j5)*zb(j2,j4))/t(j2,j3,
     .j4)**2
     .))/(2d0*za(j5,j6)*zb(j2,j3)*(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j
     .2,j4)))
      
      Fsc6=Fsc6+
     .(za(j1,j5)**2*zb(j1,j4)*zb(j2,j4)*
     .((-2d0*L0(-s(j5,j6),-t(j2,j3,j4))*zb(j2,j4))/
     .(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j4))+
     .(L1(-s(j5,j6),-t(j2,j3,j4))*zb(j1,j4))/t(j2,j3,j4)))/
     .(2d0*za(j5,j6)*zb(j2,j3)*(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j
     .4))*
     .zb(j3,j4))+(za(j3,j5)*zb(j2,j4)*
     .(za(j3,j5)/za(j3,j4)+(-(za(j2,j5)*zb(j2,j4))-za(j3,j5)*zb(j3,j4))/
     .t(j2,j3,j4)))/
     .(2d0*za(j5,j6)*zb(j2,j3)*(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j
     .4)))-
     .(Lsm1_2mh(s(j1,j2),t(j2,j3,j4),s(j3,j4),s(j5,j6))*za(j1,j5)**2*zb(
     .j2,j4)**3*
     .t(j2,j3,j4))/
     .(za(j5,j6)*zb(j2,j3)*(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j4))*
     .*3*
     .zb(j3,j4))+(Lnrat(-s(j1,j2),-s(j5,j6))*zb(j2,j4)*
     .(((s(j1,j2)-s(j3,j4)-s(j5,j6))*zb(j1,j2)*
     .(-(za(j2,j5)*(-(za(j1,j5)*za(j2,j3))+za(j1,j2)*za(j3,j5))*
     .zb(j2,j4))+(za(j1,j3)*za(j1,j5)**2*
     .(-(za(j2,j3)*zb(j1,j3))-za(j2,j4)*zb(j1,j4))*zb(j2,j4)
     .)/(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j4))-
     .za(j1,j5)*za(j2,j5)*
     .(-(za(j1,j3)*zb(j1,j4))-za(j2,j3)*zb(j2,j4))))/
     .((s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-
     .2d0*s(j1,j2)*s(j5,j6)-2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2)*za(j5,j6)
     .)
     .-(2d0*(-s(j1,j2)-s(j3,j4)+s(j5,j6))*za(j1,j2)*za(j3,j5)*
     .(zb(j1,j6)*zb(j2,j4)+zb(j1,j4)*zb(j2,j6)))/
     .(s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-2d0*s(j1,j2)*s(j5,j
     .6)-
     .2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2)-
     .(za(j1,j3)*zb(j2,j4)*(-((za(j1,j5)*za(j2,j5)*zb(j1,j2))/
     .za(j5,j6))-(za(j1,j2)*zb(j1,j6)*zb(j2,j6))/zb(j5,j6)))/
     .(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j4))-
     .(za(j2,j3)*zb(j2,j6)*zb(j4,j6))/zb(j5,j6)+
     .((s(j1,j2)-s(j3,j4)-s(j5,j6))*za(j1,j2)*
     .(zb(j1,j4)*zb(j2,j6)*
     .(-(za(j1,j3)*zb(j1,j6))-za(j2,j3)*zb(j2,j6))-
     .za(j1,j3)*zb(j2,j4)*
     .(zb(j1,j6)**2+((-(za(j2,j3)*zb(j1,j3))-
     .za(j2,j4)*zb(j1,j4))*zb(j2,j6)**2)/
     .(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j4)))+
     .zb(j1,j2)*zb(j4,j6)*
     .(-(za(j2,j3)*zb(j2,j6))+za(j3,j4)*zb(j4,j6))))/
     .((s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-
     .2d0*s(j1,j2)*s(j5,j6)-2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2)*zb(j5,j6)
     .)
     .+(6d0*s(j1,j2)*s(j3,j4)*(-(za(j1,j3)*zb(j1,j4))-za(j2,j3)*zb(j2,j4
     .))*
     .(-(za(j1,j5)*zb(j1,j6))-za(j2,j5)*zb(j2,j6))*
     .(t(j1,j3,j4)-t(j2,j3,j4)))/
     .(s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-2d0*s(j1,j2)*s(j5,j
     .6)-
     .2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2)**2-
     .(s(j1,j2)*((za(j3,j5)**2*zb(j3,j4))/za(j5,j6)+
     .(za(j3,j4)*zb(j4,j6)**2)/zb(j5,j6))*t(j2,j3,j4))/
     .(s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-2d0*s(j1,j2)*s(j5,j
     .6)-
     .2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2)))/
     .(2d0*s(j3,j4)*zb(j2,j3)*(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j4
     .)))
     
      Fsc6=Fsc6+
     .(Lnrat(-s(j1,j2),-s(j5,j6))*za(j1,j3)*
     .((za(j1,j5)*za(j3,j5)*zb(j1,j4))/za(j5,j6)+
     .((s(j1,j2)-s(j3,j4)-s(j5,j6))*zb(j1,j2)*
     .(za(j1,j5)*za(j2,j3)*
     .(-(za(j1,j5)*zb(j1,j4))-za(j2,j5)*zb(j2,j4))-
     .za(j1,j3)*zb(j2,j4)*
     .(za(j2,j5)**2+(za(j1,j5)**2*
     .(-(za(j2,j3)*zb(j1,j3))-za(j2,j4)*zb(j1,j4)))/
     .(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j4)))-
     .za(j1,j2)*za(j3,j5)*
     .(-(za(j1,j5)*zb(j1,j4))-za(j3,j5)*zb(j3,j4))))/
     .((s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-
     .2d0*s(j1,j2)*s(j5,j6)-2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2)*za(j5,j6)
     .)
     .+(2d0*(-s(j1,j2)-s(j3,j4)+s(j5,j6))*
     .(za(j1,j5)*za(j2,j3)+za(j1,j3)*za(j2,j5))*zb(j1,j2)*zb(j4,j6)
     .)/(s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-2d0*s(j1,j2)*s(j5
     .,j6)-
     .2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2)-
     .(za(j1,j3)*zb(j2,j4)*(-((za(j1,j5)*za(j2,j5)*zb(j1,j2))/
     .za(j5,j6))-(za(j1,j2)*zb(j1,j6)*zb(j2,j6))/zb(j5,j6)))/
     .(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j4))+
     .((s(j1,j2)-s(j3,j4)-s(j5,j6))*za(j1,j2)*
     .(-(zb(j1,j6)*(-(za(j1,j3)*zb(j1,j4))-za(j2,j3)*zb(j2,j4))*
     .zb(j2,j6))+(za(j1,j3)*
     .(-(za(j2,j3)*zb(j1,j3))-za(j2,j4)*zb(j1,j4))*
     .zb(j2,j4)*zb(j2,j6)**2)/
     .(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j4))-
     .za(j1,j3)*zb(j1,j6)*
     .(-(zb(j1,j4)*zb(j2,j6))-zb(j1,j2)*zb(j4,j6))))/
     .((s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-
     .2d0*s(j1,j2)*s(j5,j6)-2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2)*zb(j5,j6)
     .)
     .-(s(j1,j2)*((za(j3,j5)**2*zb(j3,j4))/za(j5,j6)+
     .(za(j3,j4)*zb(j4,j6)**2)/zb(j5,j6))*t(j1,j3,j4))/
     .(s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-2d0*s(j1,j2)*s(j5,j
     .6)-
     .2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2)+
     .(6d0*s(j1,j2)*s(j3,j4)*(-(za(j1,j3)*zb(j1,j4))-za(j2,j3)*zb(j2,j4)
     .)*
     .(-(za(j1,j5)*zb(j1,j6))-za(j2,j5)*zb(j2,j6))*
     .(-t(j1,j3,j4)+t(j2,j3,j4)))/
     .(s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-2d0*s(j1,j2)*s(j5,j
     .6)-
     .2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2)**2))/
     .(2d0*s(j3,j4)*za(j1,j4)*(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j4
     .)))
     
      Fsc6=Fsc6+
     .(I3m(s(j1,j2),s(j3,j4),s(j5,j6))*za(j1,j3)*
     .(-((za(j1,j3)*(-(za(j2,j3)*zb(j1,j3))-za(j2,j4)*zb(j1,j4))*
     .zb(j2,j4)*(-(za(j1,j3)*
     .(-(za(j1,j5)*zb(j1,j3))-za(j2,j5)*zb(j2,j3)))-
     .za(j1,j4)*(-(za(j1,j5)*zb(j1,j4))-
     .za(j2,j5)*zb(j2,j4))+
     .za(j1,j2)*(za(j3,j5)*zb(j2,j3)+za(j4,j5)*zb(j2,j4)))*
     .zb(j2,j6))/(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j4)))+
     .zb(j1,j4)*(za(j1,j3)*(-(za(j1,j2)*
     .(za(j3,j5)*zb(j1,j3)+za(j4,j5)*zb(j1,j4)))-
     .za(j2,j3)*(-(za(j1,j5)*zb(j1,j3))-za(j2,j5)*zb(j2,j3))-
     .za(j2,j4)*(-(za(j1,j5)*zb(j1,j4))-za(j2,j5)*zb(j2,j4)))+
     .za(j1,j2)*(-(za(j1,j3)*
     .(za(j3,j5)*zb(j1,j3)+za(j4,j5)*zb(j1,j4)))-
     .za(j2,j3)*(za(j3,j5)*zb(j2,j3)+za(j4,j5)*zb(j2,j4))))*
     .zb(j2,j6)+(s(j1,j2)*
     .(-(za(j1,j3)*zb(j1,j4))-za(j2,j3)*zb(j2,j4))*
     .(-(za(j1,j5)*zb(j1,j6))-za(j2,j5)*zb(j2,j6)))/2+
     .za(j2,j3)*zb(j1,j2)*(-(za(j1,j2)*za(j3,j5)*zb(j2,j6)*zb(j3,j4))+
     .(-(za(j1,j5)*zb(j1,j6))-za(j2,j5)*zb(j2,j6))*
     .(za(j1,j2)*zb(j2,j4)+za(j1,j3)*zb(j3,j4)))+
     .(3d0*s(j1,j2)*(s(j1,j2)-s(j3,j4)-s(j5,j6))*
     .(-(za(j1,j3)*zb(j1,j4))-za(j2,j3)*zb(j2,j4))*
     .(-(za(j1,j5)*zb(j1,j6))-za(j2,j5)*zb(j2,j6))*
     .(-t(j1,j3,j4)+t(j2,j3,j4)))/
     .(2d0*(s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-
     .2d0*s(j1,j2)*s(j5,j6)-2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2))))/
     .((s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-2d0*s(j1,j2)*s(j5,
     .j6)-
     .2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2)*za(j1,j4)*
     .(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j4)))
     
      Fsc6=Fsc6+
     .(Lnrat(-s(j3,j4),-s(j5,j6))*za(j1,j3)*
     .(-2d0*(za(j1,j3)*zb(j1,j4)-za(j2,j3)*zb(j2,j4))*
     .(-(za(j1,j5)*zb(j1,j6))-za(j2,j5)*zb(j2,j6))-
     .(8d0*s(j1,j2)*za(j1,j3)*za(j5,j6)*zb(j2,j6)*zb(j4,j6))/
     .(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j4))+
     .4d0*(-(za(j1,j2)*za(j3,j5)*zb(j1,j6)*zb(j2,j4))+
     .za(j1,j5)*za(j2,j3)*zb(j1,j2)*zb(j4,j6))+
     .(-(za(j1,j3)*zb(j1,j4))-za(j2,j3)*zb(j2,j4)+
     .(4d0*s(j5,j6)*za(j1,j3)*zb(j2,j4))/
     .(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j4)))*
     .((za(j1,j5)*za(j2,j5)*zb(j1,j2))/za(j5,j6)-
     .(za(j1,j2)*zb(j1,j6)*zb(j2,j6))/zb(j5,j6))-
     .(-s(j1,j2)+s(j3,j4)-s(j5,j6))*
     .((za(j1,j5)*za(j3,j5)*zb(j1,j4))/za(j5,j6)-
     .(za(j2,j3)*zb(j2,j6)*zb(j4,j6))/zb(j5,j6)-
     .(2d0*za(j1,j3)*zb(j2,j6)*
     .(-(za(j1,j2)*zb(j1,j4)*zb(j2,j6))+
     .za(j2,j3)*zb(j2,j6)*zb(j3,j4)+
     .za(j1,j5)*zb(j1,j4)*zb(j5,j6)))/
     .((-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j4))*zb(j5,j6)))+
     .(3d0*(-s(j1,j2)-s(j3,j4)+s(j5,j6))*
     .(-(za(j1,j3)*zb(j1,j4))-za(j2,j3)*zb(j2,j4))*
     .(-(za(j1,j5)*zb(j1,j6))-za(j2,j5)*zb(j2,j6))*
     .(-t(j1,j3,j4)+t(j2,j3,j4)))/
     .(s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-2d0*s(j1,j2)*s(j5,j
     .6)-
     .2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2)))/
     .(2d0*(s(j1,j2)**2-2d0*s(j1,j2)*s(j3,j4)+s(j3,j4)**2-2d0*s(j1,j2)*s
     .(j5,j6)-
     .2d0*s(j3,j4)*s(j5,j6)+s(j5,j6)**2)*za(j1,j4)*
     .(-(za(j1,j3)*zb(j2,j3))-za(j1,j4)*zb(j2,j4)))

      return
      end