pair,contact1,contact2,flow1,flow2 2xsf_A_,2,81,1,1 2xsf_A_,4,79,1,1 2xsf_A_,6,53,1,1 2xsf_A_,6,56,1,1 2xsf_A_,6,57,1,1 2xsf_A_,8,51,1,1 2xsf_A_,9,77,1,1 2xsf_A_,10,49,1,1 2xsf_A_,11,75,1,1 2xsf_A_,12,47,1,1 2xsf_A_,13,47,1,1 2xsf_A_,14,16,1,1 2xsf_A_,14,17,1,1 2xsf_A_,18,21,1,1 2xsf_A_,18,22,1,1 2xsf_A_,19,23,1,1 2xsf_A_,20,24,1,1 2xsf_A_,21,25,1,1 2xsf_A_,22,26,1,1 2xsf_A_,23,27,1,1 2xsf_A_,23,32,1,1 2xsf_A_,23,33,1,1 2xsf_A_,25,28,1,1 2xsf_A_,26,29,1,1 2xsf_A_,27,30,1,1 2xsf_A_,31,54,1,1 2xsf_A_,31,55,1,1 2xsf_A_,33,52,1,1 2xsf_A_,34,52,1,1 2xsf_A_,36,50,1,1 2xsf_A_,38,46,1,1 2xsf_A_,38,48,1,1 2xsf_A_,39,40,1,1 2xsf_A_,40,42,1,1 2xsf_A_,40,43,1,1 2xsf_A_,40,44,1,1 2xsf_A_,45,47,1,1 2xsf_A_,57,59,1,1 2xsf_A_,58,61,1,1 2xsf_A_,58,62,1,1 2xsf_A_,59,63,1,1 2xsf_A_,60,64,1,1 2xsf_A_,62,65,1,1 2xsf_A_,63,66,1,1 2xsf_A_,66,76,1,1 2xsf_A_,68,70,1,1 2xsf_A_,70,72,1,1 2xsf_A_,70,73,1,1 2xsf_A_,70,75,1,1 2xsf_A_,73,75,1,1