pair,contact1,contact2,flow1,flow2 8t4s_h_,2,6,1,1 8t4s_h_,3,7,1,1 8t4s_h_,4,8,1,1 8t4s_h_,5,9,1,1 8t4s_h_,6,10,1,1 8t4s_h_,7,11,1,1 8t4s_h_,8,12,1,1 8t4s_h_,9,13,1,1 8t4s_h_,10,14,1,1 8t4s_h_,11,15,1,1 8t4s_h_,12,16,1,1 8t4s_h_,13,17,1,1 8t4s_h_,14,18,1,1 8t4s_h_,15,19,1,1 8t4s_h_,16,20,1,1 8t4s_h_,17,21,1,1