pair,contact1,contact2,flow1,flow2 3dll_F_,4,7,1,1 3dll_F_,4,8,1,1 3dll_F_,20,21,1,1 3dll_F_,21,24,1,1 3dll_F_,22,24,1,1 3dll_F_,30,68,1,1 3dll_F_,31,33,1,1 3dll_F_,31,34,1,1 3dll_F_,34,38,1,1 3dll_F_,35,39,1,1 3dll_F_,36,40,1,1 3dll_F_,37,41,1,1 3dll_F_,38,41,1,1 3dll_F_,38,42,1,1 3dll_F_,48,50,1,1 3dll_F_,50,53,1,1 3dll_F_,50,54,1,1 3dll_F_,53,55,1,1 3dll_F_,55,59,1,1 3dll_F_,56,60,1,1 3dll_F_,56,63,1,1 3dll_F_,57,61,1,1 3dll_F_,58,62,1,1 3dll_F_,59,63,1,1 3dll_F_,60,64,1,1 3dll_F_,62,65,1,1 3dll_F_,63,66,1,1 3dll_F_,63,67,1,1