pair,contact1,contact2,flow1,flow2 4ch8_A_,5,8,1,1 4ch8_A_,5,9,1,1 4ch8_A_,5,10,1,1 4ch8_A_,5,15,1,1 4ch8_A_,8,11,1,1 4ch8_A_,8,13,1,1 4ch8_A_,9,12,1,1 4ch8_A_,15,17,1,1 4ch8_A_,15,18,1,1 4ch8_A_,17,20,1,1 4ch8_A_,18,22,1,1 4ch8_A_,19,23,1,1 4ch8_A_,20,24,1,1 4ch8_A_,21,24,1,1 4ch8_A_,22,25,1,1 4ch8_A_,23,26,1,1