pair,contact1,contact2,flow1,flow2 2nwa_A_,4,6,1,1 2nwa_A_,4,30,1,1 2nwa_A_,4,32,1,1 2nwa_A_,6,32,1,1 2nwa_A_,9,38,1,1 2nwa_A_,9,40,1,1 2nwa_A_,10,27,1,1 2nwa_A_,11,40,1,1 2nwa_A_,14,26,1,1 2nwa_A_,16,24,1,1 2nwa_A_,18,22,1,1 2nwa_A_,19,20,1,1 2nwa_A_,20,21,1,1 2nwa_A_,21,68,1,1 2nwa_A_,23,66,1,1 2nwa_A_,25,64,1,1 2nwa_A_,26,61,1,1 2nwa_A_,27,62,1,1 2nwa_A_,28,31,1,1 2nwa_A_,28,61,1,1 2nwa_A_,29,60,1,1 2nwa_A_,30,60,1,1 2nwa_A_,31,57,1,1 2nwa_A_,39,47,1,1 2nwa_A_,39,48,1,1 2nwa_A_,42,43,1,1 2nwa_A_,45,46,1,1 2nwa_A_,47,72,1,1 2nwa_A_,49,69,1,1 2nwa_A_,49,70,1,1 2nwa_A_,51,67,1,1 2nwa_A_,53,65,1,1 2nwa_A_,54,65,1,1 2nwa_A_,56,62,1,1 2nwa_A_,56,63,1,1 2nwa_A_,58,61,1,1 2nwa_A_,72,74,1,1