pair,contact1,contact2,flow1,flow2
1ldl_A_,9,21,1,1
1ldl_A_,11,19,1,1
1ldl_A_,13,17,1,1
1ldl_A_,15,35,1,1
1ldl_A_,20,23,1,1
1ldl_A_,21,24,1,1
1ldl_A_,24,25,1,1
1ldl_A_,25,36,1,1
1ldl_A_,38,41,1,1
1ldl_A_,38,42,1,1