pair,contact1,contact2,flow1,flow2 5u0s_f_,6,9,1,1 5u0s_f_,7,10,1,1 5u0s_f_,10,76,1,1 5u0s_f_,11,75,1,1 5u0s_f_,12,13,1,1 5u0s_f_,12,75,1,1 5u0s_f_,13,15,1,1 5u0s_f_,13,67,1,1 5u0s_f_,15,67,1,1 5u0s_f_,17,19,1,1 5u0s_f_,17,20,1,1 5u0s_f_,17,21,1,1 5u0s_f_,20,23,1,1 5u0s_f_,20,24,1,1 5u0s_f_,20,67,1,1 5u0s_f_,21,25,1,1 5u0s_f_,23,27,1,1 5u0s_f_,24,28,1,1 5u0s_f_,25,29,1,1 5u0s_f_,26,30,1,1 5u0s_f_,27,31,1,1 5u0s_f_,28,32,1,1 5u0s_f_,28,37,1,1 5u0s_f_,28,55,1,1 5u0s_f_,29,33,1,1 5u0s_f_,30,33,1,1 5u0s_f_,31,34,1,1 5u0s_f_,39,55,1,1 5u0s_f_,47,51,1,1 5u0s_f_,49,53,1,1 5u0s_f_,51,55,1,1 5u0s_f_,52,56,1,1 5u0s_f_,53,57,1,1 5u0s_f_,55,60,1,1 5u0s_f_,56,59,1,1 5u0s_f_,58,60,1,1 5u0s_f_,65,77,1,1 5u0s_f_,67,75,1,1 5u0s_f_,69,73,1,1 5u0s_f_,75,77,1,1 5u0s_f_,78,81,1,1 5u0s_f_,78,82,1,1