pair,contact1,contact2,flow1,flow2 2knt_A_,1,2,1,1 2knt_A_,2,4,1,1 2knt_A_,2,5,1,1 2knt_A_,3,6,1,1 2knt_A_,4,7,1,1 2knt_A_,7,43,1,1 2knt_A_,8,41,1,1 2knt_A_,9,11,1,1 2knt_A_,10,12,1,1 2knt_A_,11,36,1,1 2knt_A_,13,38,1,1 2knt_A_,16,36,1,1 2knt_A_,18,35,1,1 2knt_A_,20,33,1,1 2knt_A_,21,45,1,1 2knt_A_,22,31,1,1 2knt_A_,23,43,1,1 2knt_A_,24,26,1,1 2knt_A_,24,27,1,1 2knt_A_,24,28,1,1 2knt_A_,24,29,1,1 2knt_A_,27,29,1,1 2knt_A_,30,52,1,1 2knt_A_,35,40,1,1 2knt_A_,41,43,1,1 2knt_A_,47,50,1,1 2knt_A_,47,51,1,1 2knt_A_,48,52,1,1 2knt_A_,49,53,1,1 2knt_A_,50,54,1,1 2knt_A_,51,55,1,1 2knt_A_,52,56,1,1