pair,contact1,contact2,flow1,flow2
2ffk_B_,5,6,1,1
2ffk_B_,16,18,1,1
2ffk_B_,21,24,1,1
2ffk_B_,27,43,1,1
2ffk_B_,29,41,1,1
2ffk_B_,31,39,1,1
2ffk_B_,40,51,1,1
2ffk_B_,40,52,1,1
2ffk_B_,42,50,1,1
2ffk_B_,53,56,1,1
2ffk_B_,56,58,1,1
2ffk_B_,56,59,1,1
2ffk_B_,56,60,1,1
2ffk_B_,57,61,1,1
2ffk_B_,58,62,1,1
2ffk_B_,59,63,1,1
2ffk_B_,60,64,1,1
2ffk_B_,61,65,1,1
2ffk_B_,62,66,1,1
2ffk_B_,63,67,1,1
2ffk_B_,64,67,1,1
2ffk_B_,65,68,1,1