pair,contact1,contact2,flow1,flow2 8t4s_b_,2,4,1,1 8t4s_b_,10,14,1,1 8t4s_b_,11,15,1,1 8t4s_b_,12,16,1,1 8t4s_b_,13,17,1,1 8t4s_b_,14,17,1,1 8t4s_b_,14,22,1,1 8t4s_b_,14,23,1,1 8t4s_b_,15,22,1,1 8t4s_b_,18,20,1,1 8t4s_b_,18,21,1,1 8t4s_b_,20,25,1,1 8t4s_b_,22,28,1,1 8t4s_b_,24,26,1,1 8t4s_b_,30,47,1,1 8t4s_b_,31,81,1,1 8t4s_b_,32,45,1,1 8t4s_b_,33,79,1,1 8t4s_b_,33,81,1,1 8t4s_b_,34,43,1,1 8t4s_b_,35,77,1,1 8t4s_b_,47,70,1,1 8t4s_b_,53,62,1,1 8t4s_b_,55,58,1,1 8t4s_b_,55,60,1,1 8t4s_b_,61,73,1,1 8t4s_b_,62,73,1,1 8t4s_b_,64,71,1,1 8t4s_b_,66,69,1,1 8t4s_b_,73,76,1,1 8t4s_b_,79,80,1,1