pair,contact1,contact2,flow1,flow2
2r28_C_,1,5,1,1
2r28_C_,2,6,1,1
2r28_C_,3,7,1,1
2r28_C_,4,8,1,1
2r28_C_,5,9,1,1
2r28_C_,6,10,1,1
2r28_C_,7,11,1,1
2r28_C_,8,12,1,1
2r28_C_,9,13,1,1
2r28_C_,10,13,1,1
2r28_C_,10,14,1,1
2r28_C_,11,15,1,1