pair,contact1,contact2,flow1,flow2 8t4s_d_,1,4,1,1 8t4s_d_,1,5,1,1 8t4s_d_,2,5,1,1 8t4s_d_,2,6,1,1 8t4s_d_,5,8,1,1 8t4s_d_,14,17,1,1 8t4s_d_,15,18,1,1 8t4s_d_,15,26,1,1 8t4s_d_,18,26,1,1 8t4s_d_,20,24,1,1 8t4s_d_,20,25,1,1 8t4s_d_,21,34,1,1 8t4s_d_,21,35,1,1 8t4s_d_,21,36,1,1 8t4s_d_,28,39,1,1 8t4s_d_,30,36,1,1 8t4s_d_,30,37,1,1 8t4s_d_,31,34,1,1 8t4s_d_,32,33,1,1 8t4s_d_,32,35,1,1 8t4s_d_,38,40,1,1 8t4s_d_,38,42,1,1 8t4s_d_,39,43,1,1 8t4s_d_,40,44,1,1 8t4s_d_,41,45,1,1 8t4s_d_,45,49,1,1 8t4s_d_,46,50,1,1 8t4s_d_,46,51,1,1