pair,contact1,contact2,flow1,flow2 3c4s_A_,3,6,1,1 3c4s_A_,5,24,1,1 3c4s_A_,6,24,1,1 3c4s_A_,7,55,1,1 3c4s_A_,8,22,1,1 3c4s_A_,9,53,1,1 3c4s_A_,10,19,1,1 3c4s_A_,10,20,1,1 3c4s_A_,11,51,1,1 3c4s_A_,12,14,1,1 3c4s_A_,12,15,1,1 3c4s_A_,12,51,1,1 3c4s_A_,15,18,1,1 3c4s_A_,17,20,1,1 3c4s_A_,23,25,1,1 3c4s_A_,23,35,1,1 3c4s_A_,25,33,1,1 3c4s_A_,26,33,1,1 3c4s_A_,28,31,1,1 3c4s_A_,30,49,1,1 3c4s_A_,32,47,1,1 3c4s_A_,34,45,1,1 3c4s_A_,36,43,1,1 3c4s_A_,38,41,1,1 3c4s_A_,48,51,1,1 3c4s_A_,49,52,1,1