pair,contact1,contact2,flow1,flow2 6yt9_s_,2,3,1,1 6yt9_s_,2,4,1,1 6yt9_s_,5,8,1,1 6yt9_s_,5,9,1,1 6yt9_s_,6,10,1,1 6yt9_s_,8,11,1,1 6yt9_s_,9,12,1,1 6yt9_s_,12,20,1,1 6yt9_s_,14,16,1,1 6yt9_s_,14,17,1,1 6yt9_s_,14,18,1,1 6yt9_s_,17,43,1,1 6yt9_s_,20,32,1,1 6yt9_s_,21,24,1,1 6yt9_s_,21,25,1,1 6yt9_s_,22,26,1,1 6yt9_s_,22,27,1,1 6yt9_s_,25,27,1,1 6yt9_s_,28,32,1,1 6yt9_s_,29,33,1,1 6yt9_s_,30,34,1,1 6yt9_s_,31,35,1,1 6yt9_s_,32,36,1,1 6yt9_s_,33,37,1,1 6yt9_s_,34,38,1,1 6yt9_s_,35,39,1,1 6yt9_s_,36,40,1,1 6yt9_s_,37,41,1,1 6yt9_s_,38,42,1,1 6yt9_s_,39,43,1,1 6yt9_s_,40,44,1,1 6yt9_s_,41,45,1,1 6yt9_s_,42,47,1,1 6yt9_s_,43,46,1,1