pair,contact1,contact2,flow1,flow2 8hu1_h_,1,21,1,1 8hu1_h_,2,39,1,1 8hu1_h_,4,37,1,1 8hu1_h_,5,16,1,1 8hu1_h_,14,17,1,1 8hu1_h_,22,26,1,1 8hu1_h_,23,27,1,1 8hu1_h_,24,28,1,1 8hu1_h_,25,29,1,1 8hu1_h_,26,30,1,1 8hu1_h_,26,31,1,1 8hu1_h_,30,33,1,1 8hu1_h_,33,35,1,1 8hu1_h_,34,36,1,1 8hu1_h_,38,40,1,1