pair,contact1,contact2,flow1,flow2 2wbs_A_,4,15,1,1 2wbs_A_,6,13,1,1 2wbs_A_,6,28,1,1 2wbs_A_,8,11,1,1 2wbs_A_,9,34,1,1 2wbs_A_,11,24,1,1 2wbs_A_,11,28,1,1 2wbs_A_,13,37,1,1 2wbs_A_,17,20,1,1 2wbs_A_,17,21,1,1 2wbs_A_,18,22,1,1 2wbs_A_,19,23,1,1 2wbs_A_,20,24,1,1 2wbs_A_,21,25,1,1 2wbs_A_,24,27,1,1 2wbs_A_,24,28,1,1 2wbs_A_,25,28,1,1 2wbs_A_,27,29,1,1 2wbs_A_,28,33,1,1 2wbs_A_,34,45,1,1 2wbs_A_,36,43,1,1 2wbs_A_,36,54,1,1 2wbs_A_,36,58,1,1 2wbs_A_,38,41,1,1 2wbs_A_,41,54,1,1 2wbs_A_,41,58,1,1 2wbs_A_,47,49,1,1 2wbs_A_,47,50,1,1 2wbs_A_,47,51,1,1 2wbs_A_,48,52,1,1 2wbs_A_,49,53,1,1 2wbs_A_,50,54,1,1 2wbs_A_,51,55,1,1 2wbs_A_,54,57,1,1 2wbs_A_,55,58,1,1 2wbs_A_,55,59,1,1 2wbs_A_,56,60,1,1 2wbs_A_,56,74,1,1 2wbs_A_,59,61,1,1 2wbs_A_,60,62,1,1 2wbs_A_,64,73,1,1 2wbs_A_,65,67,1,1 2wbs_A_,66,71,1,1 2wbs_A_,66,82,1,1 2wbs_A_,66,86,1,1 2wbs_A_,69,82,1,1 2wbs_A_,69,86,1,1 2wbs_A_,75,77,1,1 2wbs_A_,75,79,1,1 2wbs_A_,76,80,1,1 2wbs_A_,77,81,1,1 2wbs_A_,78,82,1,1 2wbs_A_,79,83,1,1 2wbs_A_,81,84,1,1 2wbs_A_,82,85,1,1 2wbs_A_,83,86,1,1 2wbs_A_,84,87,1,1