pair,contact1,contact2,flow1,flow2
2dk1_A_,8,24,1,1
2dk1_A_,10,22,1,1
2dk1_A_,12,20,1,1
2dk1_A_,14,18,1,1
2dk1_A_,21,30,1,1
2dk1_A_,23,28,1,1