pair,contact1,contact2,flow1,flow2 8c2s_r_,8,11,1,1 8c2s_r_,9,12,1,1 8c2s_r_,10,16,1,1 8c2s_r_,16,21,1,1 8c2s_r_,17,20,1,1 8c2s_r_,17,21,1,1 8c2s_r_,18,21,1,1 8c2s_r_,22,25,1,1 8c2s_r_,23,26,1,1 8c2s_r_,24,27,1,1 8c2s_r_,34,35,1,1 8c2s_r_,44,46,1,1 8c2s_r_,58,60,1,1