pair,contact1,contact2,flow1,flow2 1dtk_A_,1,55,1,1 1dtk_A_,2,5,1,1 1dtk_A_,3,6,1,1 1dtk_A_,4,7,1,1 1dtk_A_,7,43,1,1 1dtk_A_,8,10,1,1 1dtk_A_,8,41,1,1 1dtk_A_,10,39,1,1 1dtk_A_,10,44,1,1 1dtk_A_,11,36,1,1 1dtk_A_,12,14,1,1 1dtk_A_,12,36,1,1 1dtk_A_,16,36,1,1 1dtk_A_,18,20,1,1 1dtk_A_,18,35,1,1 1dtk_A_,19,46,1,1 1dtk_A_,20,33,1,1 1dtk_A_,21,45,1,1 1dtk_A_,22,31,1,1 1dtk_A_,23,43,1,1 1dtk_A_,24,27,1,1 1dtk_A_,24,28,1,1 1dtk_A_,24,29,1,1 1dtk_A_,25,28,1,1 1dtk_A_,35,37,1,1 1dtk_A_,35,40,1,1 1dtk_A_,36,37,1,1 1dtk_A_,36,38,1,1 1dtk_A_,41,44,1,1 1dtk_A_,42,44,1,1 1dtk_A_,47,50,1,1 1dtk_A_,47,51,1,1 1dtk_A_,48,52,1,1 1dtk_A_,49,52,1,1 1dtk_A_,49,53,1,1 1dtk_A_,50,54,1,1 1dtk_A_,51,55,1,1 1dtk_A_,52,56,1,1