pair,contact1,contact2,flow1,flow2 4tnt_A_,1,3,1,1 4tnt_A_,2,11,1,1 4tnt_A_,4,8,1,1 4tnt_A_,4,9,1,1 4tnt_A_,5,19,1,1 4tnt_A_,6,63,1,1 4tnt_A_,9,10,1,1 4tnt_A_,9,53,1,1 4tnt_A_,12,15,1,1 4tnt_A_,12,20,1,1 4tnt_A_,13,20,1,1 4tnt_A_,15,18,1,1 4tnt_A_,16,70,1,1 4tnt_A_,20,21,1,1 4tnt_A_,21,23,1,1 4tnt_A_,21,25,1,1 4tnt_A_,22,26,1,1 4tnt_A_,23,27,1,1 4tnt_A_,24,28,1,1 4tnt_A_,25,29,1,1 4tnt_A_,26,30,1,1 4tnt_A_,27,31,1,1 4tnt_A_,28,31,1,1 4tnt_A_,28,32,1,1 4tnt_A_,29,33,1,1 4tnt_A_,36,37,1,1 4tnt_A_,49,52,1,1 4tnt_A_,52,55,1,1 4tnt_A_,56,60,1,1 4tnt_A_,57,61,1,1 4tnt_A_,58,62,1,1 4tnt_A_,59,63,1,1 4tnt_A_,60,64,1,1 4tnt_A_,61,65,1,1 4tnt_A_,62,66,1,1 4tnt_A_,63,67,1,1 4tnt_A_,64,69,1,1 4tnt_A_,65,68,1,1 4tnt_A_,68,70,1,1