pair,contact1,contact2,flow1,flow2 6y69_x_,1,2,1,1 6y69_x_,2,37,1,1 6y69_x_,4,37,1,1 6y69_x_,4,39,1,1 6y69_x_,6,41,1,1 6y69_x_,8,41,1,1 6y69_x_,13,16,1,1 6y69_x_,14,18,1,1 6y69_x_,15,19,1,1 6y69_x_,16,20,1,1 6y69_x_,17,20,1,1 6y69_x_,17,21,1,1 6y69_x_,18,21,1,1 6y69_x_,18,22,1,1 6y69_x_,19,23,1,1 6y69_x_,20,24,1,1 6y69_x_,23,26,1,1 6y69_x_,28,31,1,1 6y69_x_,28,32,1,1 6y69_x_,32,33,1,1 6y69_x_,35,55,1,1 6y69_x_,36,55,1,1 6y69_x_,38,53,1,1 6y69_x_,40,51,1,1 6y69_x_,42,49,1,1 6y69_x_,44,47,1,1 6y69_x_,47,49,1,1 6y69_x_,48,67,1,1 6y69_x_,50,65,1,1 6y69_x_,50,73,1,1 6y69_x_,52,63,1,1 6y69_x_,53,62,1,1 6y69_x_,54,61,1,1 6y69_x_,56,59,1,1 6y69_x_,64,80,1,1 6y69_x_,71,75,1,1 6y69_x_,72,76,1,1 6y69_x_,73,77,1,1 6y69_x_,74,78,1,1 6y69_x_,76,80,1,1 6y69_x_,77,81,1,1 6y69_x_,78,82,1,1 6y69_x_,82,86,1,1 6y69_x_,83,86,1,1 6y69_x_,83,87,1,1 6y69_x_,84,88,1,1 6y69_x_,85,89,1,1 6y69_x_,86,90,1,1 6y69_x_,87,91,1,1 6y69_x_,89,92,1,1