pair,contact1,contact2,flow1,flow2 1k4u_S_,6,32,1,1 1k4u_S_,10,28,1,1 1k4u_S_,13,26,1,1 1k4u_S_,14,24,1,1 1k4u_S_,16,23,1,1 1k4u_S_,20,51,1,1 1k4u_S_,22,51,1,1 1k4u_S_,31,44,1,1 1k4u_S_,33,42,1,1 1k4u_S_,34,42,1,1 1k4u_S_,36,40,1,1 1k4u_S_,37,39,1,1 1k4u_S_,37,40,1,1 1k4u_S_,39,54,1,1 1k4u_S_,41,52,1,1 1k4u_S_,43,50,1,1 1k4u_S_,45,48,1,1 1k4u_S_,53,56,1,1 1k4u_S_,54,57,1,1 1k4u_S_,59,60,1,1