pair,contact1,contact2,flow1,flow2 8p2f_1_,4,7,1,1 8p2f_1_,4,8,1,1 8p2f_1_,4,9,1,1 8p2f_1_,4,49,1,1 8p2f_1_,5,47,1,1 8p2f_1_,7,9,1,1 8p2f_1_,12,28,1,1 8p2f_1_,14,26,1,1 8p2f_1_,16,24,1,1 8p2f_1_,17,21,1,1 8p2f_1_,18,21,1,1 8p2f_1_,18,22,1,1 8p2f_1_,26,27,1,1 8p2f_1_,30,32,1,1 8p2f_1_,31,33,1,1 8p2f_1_,31,50,1,1 8p2f_1_,33,48,1,1 8p2f_1_,35,46,1,1 8p2f_1_,37,44,1,1 8p2f_1_,39,42,1,1 8p2f_1_,49,52,1,1 8p2f_1_,49,53,1,1 8p2f_1_,51,54,1,1