pair,contact1,contact2,flow1,flow2 8t4s_Z_,6,37,1,1 8t4s_Z_,6,39,1,1 8t4s_Z_,10,13,1,1 8t4s_Z_,10,14,1,1 8t4s_Z_,11,15,1,1 8t4s_Z_,14,18,1,1 8t4s_Z_,14,49,1,1 8t4s_Z_,20,23,1,1 8t4s_Z_,21,24,1,1 8t4s_Z_,25,69,1,1 8t4s_Z_,27,68,1,1 8t4s_Z_,28,32,1,1 8t4s_Z_,29,33,1,1 8t4s_Z_,30,34,1,1 8t4s_Z_,31,35,1,1 8t4s_Z_,32,36,1,1 8t4s_Z_,33,38,1,1 8t4s_Z_,39,43,1,1 8t4s_Z_,40,44,1,1 8t4s_Z_,41,45,1,1 8t4s_Z_,42,46,1,1 8t4s_Z_,43,47,1,1 8t4s_Z_,44,48,1,1 8t4s_Z_,45,49,1,1 8t4s_Z_,46,50,1,1 8t4s_Z_,47,51,1,1 8t4s_Z_,48,52,1,1 8t4s_Z_,49,52,1,1 8t4s_Z_,49,53,1,1 8t4s_Z_,50,53,1,1 8t4s_Z_,50,55,1,1 8t4s_Z_,51,54,1,1 8t4s_Z_,57,69,1,1 8t4s_Z_,59,67,1,1 8t4s_Z_,60,67,1,1 8t4s_Z_,62,64,1,1