pair,contact1,contact2,flow1,flow2 2ckh_B_,4,20,1,1 2ckh_B_,5,66,1,1 2ckh_B_,5,67,1,1 2ckh_B_,6,18,1,1 2ckh_B_,7,68,1,1 2ckh_B_,7,70,1,1 2ckh_B_,8,16,1,1 2ckh_B_,9,70,1,1 2ckh_B_,9,72,1,1 2ckh_B_,10,13,1,1 2ckh_B_,10,14,1,1 2ckh_B_,12,14,1,1 2ckh_B_,21,24,1,1 2ckh_B_,22,60,1,1 2ckh_B_,26,30,1,1 2ckh_B_,26,57,1,1 2ckh_B_,27,31,1,1 2ckh_B_,27,55,1,1 2ckh_B_,29,33,1,1 2ckh_B_,30,34,1,1 2ckh_B_,31,35,1,1 2ckh_B_,32,36,1,1 2ckh_B_,34,39,1,1 2ckh_B_,37,38,1,1 2ckh_B_,40,43,1,1 2ckh_B_,43,75,1,1 2ckh_B_,45,73,1,1 2ckh_B_,46,53,1,1 2ckh_B_,47,50,1,1 2ckh_B_,47,71,1,1 2ckh_B_,48,51,1,1 2ckh_B_,54,57,1,1 2ckh_B_,58,61,1,1 2ckh_B_,58,62,1,1 2ckh_B_,59,62,1,1 2ckh_B_,59,64,1,1 2ckh_B_,60,63,1,1 2ckh_B_,65,68,1,1