pair,contact1,contact2,flow1,flow2
3sui_B_,3,5,1,1
3sui_B_,4,7,1,1
3sui_B_,4,8,1,1
3sui_B_,5,9,1,1
3sui_B_,7,10,1,1
3sui_B_,9,12,1,1
3sui_B_,10,13,1,1