pair,contact1,contact2,flow1,flow2 2o4t_A_,3,5,1,1 2o4t_A_,3,6,1,1 2o4t_A_,4,7,1,1 2o4t_A_,5,8,1,1 2o4t_A_,8,13,1,1 2o4t_A_,9,13,1,1 2o4t_A_,10,14,1,1 2o4t_A_,11,15,1,1 2o4t_A_,11,55,1,1 2o4t_A_,12,16,1,1 2o4t_A_,12,53,1,1 2o4t_A_,13,17,1,1 2o4t_A_,14,18,1,1 2o4t_A_,15,19,1,1 2o4t_A_,16,20,1,1 2o4t_A_,16,38,1,1 2o4t_A_,18,22,1,1 2o4t_A_,19,23,1,1 2o4t_A_,20,24,1,1 2o4t_A_,21,25,1,1 2o4t_A_,22,26,1,1 2o4t_A_,22,68,1,1 2o4t_A_,23,27,1,1 2o4t_A_,30,34,1,1 2o4t_A_,31,35,1,1 2o4t_A_,32,36,1,1 2o4t_A_,33,37,1,1 2o4t_A_,34,38,1,1 2o4t_A_,35,39,1,1 2o4t_A_,36,40,1,1 2o4t_A_,37,41,1,1 2o4t_A_,38,42,1,1 2o4t_A_,39,43,1,1 2o4t_A_,40,44,1,1 2o4t_A_,41,45,1,1 2o4t_A_,42,46,1,1 2o4t_A_,43,47,1,1 2o4t_A_,44,48,1,1 2o4t_A_,45,49,1,1 2o4t_A_,46,50,1,1 2o4t_A_,47,51,1,1 2o4t_A_,48,53,1,1 2o4t_A_,49,52,1,1 2o4t_A_,54,57,1,1 2o4t_A_,55,58,1,1 2o4t_A_,55,59,1,1 2o4t_A_,56,60,1,1 2o4t_A_,59,60,1,1 2o4t_A_,62,65,1,1 2o4t_A_,62,66,1,1 2o4t_A_,63,66,1,1 2o4t_A_,63,67,1,1 2o4t_A_,64,68,1,1 2o4t_A_,65,69,1,1 2o4t_A_,67,70,1,1 2o4t_A_,68,71,1,1 2o4t_A_,73,75,1,1 2o4t_A_,74,78,1,1 2o4t_A_,75,79,1,1 2o4t_A_,76,80,1,1 2o4t_A_,77,81,1,1 2o4t_A_,78,82,1,1 2o4t_A_,79,83,1,1 2o4t_A_,80,84,1,1 2o4t_A_,81,85,1,1 2o4t_A_,82,86,1,1 2o4t_A_,83,87,1,1 2o4t_A_,84,88,1,1 2o4t_A_,85,89,1,1