pair,contact1,contact2,flow1,flow2 5bum_A_,1,3,1,1 5bum_A_,1,48,1,1 5bum_A_,1,49,1,1 5bum_A_,2,48,1,1 5bum_A_,3,46,1,1 5bum_A_,3,47,1,1 5bum_A_,5,11,1,1 5bum_A_,5,45,1,1 5bum_A_,6,8,1,1 5bum_A_,7,42,1,1 5bum_A_,7,43,1,1 5bum_A_,8,11,1,1 5bum_A_,12,15,1,1 5bum_A_,12,16,1,1 5bum_A_,13,17,1,1 5bum_A_,14,18,1,1 5bum_A_,15,19,1,1 5bum_A_,16,20,1,1 5bum_A_,17,20,1,1 5bum_A_,17,22,1,1 5bum_A_,18,21,1,1 5bum_A_,23,26,1,1 5bum_A_,23,27,1,1 5bum_A_,24,28,1,1 5bum_A_,25,29,1,1 5bum_A_,26,29,1,1 5bum_A_,26,30,1,1 5bum_A_,27,30,1,1 5bum_A_,27,31,1,1 5bum_A_,28,31,1,1 5bum_A_,31,34,1,1 5bum_A_,31,46,1,1 5bum_A_,35,38,1,1 5bum_A_,40,43,1,1 5bum_A_,46,48,1,1