pair,contact1,contact2,flow1,flow2 1dul_A_,2,4,1,1 1dul_A_,2,5,1,1 1dul_A_,2,6,1,1 1dul_A_,3,7,1,1 1dul_A_,3,24,1,1 1dul_A_,4,8,1,1 1dul_A_,5,9,1,1 1dul_A_,10,14,1,1 1dul_A_,13,16,1,1 1dul_A_,14,17,1,1 1dul_A_,15,19,1,1 1dul_A_,16,20,1,1 1dul_A_,17,20,1,1 1dul_A_,18,24,1,1 1dul_A_,20,37,1,1 1dul_A_,21,23,1,1 1dul_A_,21,24,1,1 1dul_A_,22,26,1,1 1dul_A_,23,34,1,1 1dul_A_,23,37,1,1 1dul_A_,26,28,1,1 1dul_A_,26,29,1,1 1dul_A_,27,30,1,1 1dul_A_,31,35,1,1 1dul_A_,32,36,1,1 1dul_A_,33,37,1,1 1dul_A_,34,38,1,1 1dul_A_,35,39,1,1 1dul_A_,35,49,1,1 1dul_A_,36,40,1,1 1dul_A_,37,41,1,1 1dul_A_,38,42,1,1 1dul_A_,39,42,1,1 1dul_A_,40,43,1,1 1dul_A_,44,47,1,1 1dul_A_,44,48,1,1 1dul_A_,45,49,1,1 1dul_A_,46,50,1,1 1dul_A_,47,51,1,1 1dul_A_,48,52,1,1 1dul_A_,49,53,1,1 1dul_A_,50,54,1,1 1dul_A_,51,55,1,1 1dul_A_,52,56,1,1 1dul_A_,53,57,1,1 1dul_A_,56,59,1,1 1dul_A_,59,61,1,1