pair,contact1,contact2,flow1,flow2 8s4g_D_,1,2,1,1 8s4g_D_,6,8,1,1 8s4g_D_,10,13,1,1 8s4g_D_,13,16,1,1 8s4g_D_,13,17,1,1 8s4g_D_,19,21,1,1 8s4g_D_,23,24,1,1 8s4g_D_,25,29,1,1 8s4g_D_,26,30,1,1 8s4g_D_,27,31,1,1 8s4g_D_,28,32,1,1 8s4g_D_,29,33,1,1 8s4g_D_,30,34,1,1 8s4g_D_,31,35,1,1 8s4g_D_,32,36,1,1 8s4g_D_,33,37,1,1 8s4g_D_,34,38,1,1 8s4g_D_,35,39,1,1 8s4g_D_,36,40,1,1 8s4g_D_,37,41,1,1 8s4g_D_,38,42,1,1 8s4g_D_,39,43,1,1 8s4g_D_,40,44,1,1 8s4g_D_,41,45,1,1