pair,contact1,contact2,flow1,flow2
7f3s_B_,4,7,1,1
7f3s_B_,6,8,1,1
7f3s_B_,11,14,1,1
7f3s_B_,12,15,1,1
7f3s_B_,13,16,1,1
7f3s_B_,14,17,1,1