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