pair,contact1,contact2,flow1,flow2 6y69_u_,2,17,1,1 6y69_u_,10,13,1,1 6y69_u_,11,14,1,1 6y69_u_,14,17,1,1 6y69_u_,14,18,1,1 6y69_u_,15,19,1,1 6y69_u_,16,20,1,1 6y69_u_,23,27,1,1 6y69_u_,25,28,1,1 6y69_u_,25,29,1,1 6y69_u_,33,35,1,1 6y69_u_,34,36,1,1 6y69_u_,36,40,1,1 6y69_u_,37,41,1,1 6y69_u_,38,42,1,1 6y69_u_,39,43,1,1 6y69_u_,40,44,1,1 6y69_u_,41,44,1,1 6y69_u_,41,45,1,1 6y69_u_,44,48,1,1 6y69_u_,45,48,1,1 6y69_u_,46,50,1,1 6y69_u_,49,52,1,1 6y69_u_,49,53,1,1 6y69_u_,50,54,1,1 6y69_u_,53,57,1,1