pair,contact1,contact2,flow1,flow2 6yih_C_,1,4,1,1 6yih_C_,2,5,1,1 6yih_C_,4,8,1,1 6yih_C_,5,9,1,1 6yih_C_,6,10,1,1 6yih_C_,7,11,1,1 6yih_C_,8,11,1,1 6yih_C_,8,12,1,1 6yih_C_,9,13,1,1 6yih_C_,10,14,1,1 6yih_C_,11,15,1,1 6yih_C_,12,16,1,1 6yih_C_,13,17,1,1 6yih_C_,14,18,1,1 6yih_C_,15,19,1,1 6yih_C_,16,20,1,1 6yih_C_,17,21,1,1 6yih_C_,18,22,1,1 6yih_C_,20,23,1,1 6yih_C_,20,25,1,1 6yih_C_,23,27,1,1 6yih_C_,24,28,1,1 6yih_C_,25,29,1,1 6yih_C_,26,30,1,1 6yih_C_,28,32,1,1 6yih_C_,29,32,1,1 6yih_C_,30,34,1,1 6yih_C_,32,35,1,1 6yih_C_,32,36,1,1 6yih_C_,33,37,1,1 6yih_C_,35,38,1,1