pair,contact1,contact2,flow1,flow2
8bi8_A_,1,21,1,1
8bi8_A_,2,18,1,1
8bi8_A_,2,19,1,1
8bi8_A_,2,20,1,1
8bi8_A_,3,5,1,1
8bi8_A_,3,19,1,1
8bi8_A_,5,17,1,1
8bi8_A_,6,16,1,1
8bi8_A_,7,15,1,1
8bi8_A_,9,11,1,1
8bi8_A_,9,12,1,1
8bi8_A_,9,13,1,1
8bi8_A_,11,13,1,1