pair,contact1,contact2,flow1,flow2 1fex_A_,6,9,1,1 1fex_A_,6,10,1,1 1fex_A_,7,11,1,1 1fex_A_,8,12,1,1 1fex_A_,9,13,1,1 1fex_A_,10,14,1,1 1fex_A_,10,52,1,1 1fex_A_,11,15,1,1 1fex_A_,12,16,1,1 1fex_A_,13,17,1,1 1fex_A_,14,18,1,1 1fex_A_,15,19,1,1 1fex_A_,16,19,1,1 1fex_A_,16,20,1,1 1fex_A_,23,25,1,1 1fex_A_,25,28,1,1 1fex_A_,25,29,1,1 1fex_A_,30,34,1,1 1fex_A_,31,35,1,1 1fex_A_,32,36,1,1 1fex_A_,33,37,1,1 1fex_A_,34,38,1,1 1fex_A_,35,38,1,1 1fex_A_,35,39,1,1 1fex_A_,40,42,1,1 1fex_A_,46,50,1,1 1fex_A_,47,51,1,1 1fex_A_,48,52,1,1 1fex_A_,49,53,1,1 1fex_A_,50,54,1,1 1fex_A_,51,55,1,1 1fex_A_,52,56,1,1 1fex_A_,53,57,1,1 1fex_A_,53,58,1,1