pair,contact1,contact2,flow1,flow2 2gwf_B_,1,4,1,1 2gwf_B_,1,5,1,1 2gwf_B_,2,6,1,1 2gwf_B_,3,7,1,1 2gwf_B_,4,8,1,1 2gwf_B_,5,9,1,1 2gwf_B_,6,9,1,1 2gwf_B_,6,40,1,1 2gwf_B_,7,10,1,1 2gwf_B_,11,83,1,1 2gwf_B_,12,121,1,1 2gwf_B_,13,81,1,1 2gwf_B_,14,119,1,1 2gwf_B_,16,117,1,1 2gwf_B_,17,20,1,1 2gwf_B_,18,21,1,1 2gwf_B_,20,115,1,1 2gwf_B_,22,113,1,1 2gwf_B_,23,56,1,1 2gwf_B_,26,29,1,1 2gwf_B_,26,30,1,1 2gwf_B_,27,31,1,1 2gwf_B_,28,32,1,1 2gwf_B_,29,33,1,1 2gwf_B_,30,34,1,1 2gwf_B_,30,51,1,1 2gwf_B_,31,35,1,1 2gwf_B_,32,36,1,1 2gwf_B_,33,37,1,1 2gwf_B_,34,38,1,1 2gwf_B_,35,39,1,1 2gwf_B_,36,40,1,1 2gwf_B_,37,40,1,1 2gwf_B_,37,42,1,1 2gwf_B_,38,41,1,1 2gwf_B_,42,43,1,1 2gwf_B_,43,46,1,1 2gwf_B_,43,47,1,1 2gwf_B_,46,50,1,1 2gwf_B_,47,51,1,1 2gwf_B_,48,52,1,1 2gwf_B_,49,53,1,1 2gwf_B_,51,54,1,1 2gwf_B_,52,58,1,1 2gwf_B_,53,59,1,1 2gwf_B_,53,109,1,1 2gwf_B_,53,111,1,1 2gwf_B_,55,58,1,1 2gwf_B_,56,59,1,1 2gwf_B_,56,69,1,1 2gwf_B_,60,63,1,1 2gwf_B_,61,64,1,1 2gwf_B_,62,72,1,1 2gwf_B_,62,76,1,1 2gwf_B_,62,103,1,1 2gwf_B_,63,69,1,1 2gwf_B_,65,68,1,1 2gwf_B_,65,69,1,1 2gwf_B_,66,70,1,1 2gwf_B_,67,71,1,1 2gwf_B_,68,72,1,1 2gwf_B_,72,75,1,1 2gwf_B_,73,76,1,1 2gwf_B_,75,78,1,1 2gwf_B_,76,79,1,1 2gwf_B_,78,99,1,1 2gwf_B_,79,104,1,1 2gwf_B_,80,97,1,1 2gwf_B_,82,91,1,1 2gwf_B_,82,96,1,1 2gwf_B_,83,87,1,1 2gwf_B_,84,87,1,1 2gwf_B_,84,89,1,1 2gwf_B_,86,87,1,1 2gwf_B_,88,114,1,1 2gwf_B_,88,118,1,1 2gwf_B_,90,112,1,1 2gwf_B_,92,110,1,1 2gwf_B_,93,96,1,1 2gwf_B_,93,97,1,1 2gwf_B_,94,97,1,1 2gwf_B_,94,108,1,1 2gwf_B_,97,100,1,1 2gwf_B_,101,104,1,1 2gwf_B_,101,105,1,1