pair,contact1,contact2,flow1,flow2 8h6l_2b_,2,5,1,1 8h6l_2b_,3,7,1,1 8h6l_2b_,4,8,1,1 8h6l_2b_,6,9,1,1 8h6l_2b_,7,10,1,1 8h6l_2b_,10,13,1,1 8h6l_2b_,12,29,1,1 8h6l_2b_,13,29,1,1 8h6l_2b_,15,27,1,1 8h6l_2b_,16,69,1,1 8h6l_2b_,17,25,1,1 8h6l_2b_,18,66,1,1 8h6l_2b_,18,67,1,1 8h6l_2b_,19,22,1,1 8h6l_2b_,19,23,1,1 8h6l_2b_,20,64,1,1 8h6l_2b_,24,46,1,1 8h6l_2b_,26,44,1,1 8h6l_2b_,28,41,1,1 8h6l_2b_,30,39,1,1 8h6l_2b_,31,39,1,1 8h6l_2b_,33,36,1,1 8h6l_2b_,33,37,1,1 8h6l_2b_,38,60,1,1 8h6l_2b_,40,58,1,1 8h6l_2b_,42,56,1,1 8h6l_2b_,43,55,1,1 8h6l_2b_,45,53,1,1 8h6l_2b_,47,50,1,1 8h6l_2b_,61,64,1,1 8h6l_2b_,62,65,1,1 8h6l_2b_,71,74,1,1 8h6l_2b_,75,79,1,1 8h6l_2b_,76,80,1,1 8h6l_2b_,78,81,1,1