pair,contact1,contact2,flow1,flow2 2dix_A_,5,6,1,1 2dix_A_,9,12,1,1 2dix_A_,9,13,1,1 2dix_A_,12,16,1,1 2dix_A_,13,17,1,1 2dix_A_,14,18,1,1 2dix_A_,15,19,1,1 2dix_A_,17,20,1,1 2dix_A_,17,21,1,1 2dix_A_,18,23,1,1 2dix_A_,19,22,1,1 2dix_A_,28,44,1,1 2dix_A_,30,42,1,1 2dix_A_,31,42,1,1 2dix_A_,33,40,1,1 2dix_A_,41,57,1,1 2dix_A_,43,54,1,1 2dix_A_,45,52,1,1 2dix_A_,47,50,1,1 2dix_A_,61,65,1,1 2dix_A_,62,66,1,1 2dix_A_,63,67,1,1 2dix_A_,64,68,1,1 2dix_A_,65,69,1,1 2dix_A_,67,71,1,1 2dix_A_,68,72,1,1 2dix_A_,69,73,1,1 2dix_A_,70,74,1,1 2dix_A_,71,75,1,1 2dix_A_,72,76,1,1 2dix_A_,73,78,1,1