pair,contact1,contact2,flow1,flow2 2hgc_A_,2,6,1,1 2hgc_A_,3,7,1,1 2hgc_A_,3,31,1,1 2hgc_A_,4,8,1,1 2hgc_A_,5,9,1,1 2hgc_A_,6,10,1,1 2hgc_A_,7,11,1,1 2hgc_A_,8,9,1,1 2hgc_A_,8,12,1,1 2hgc_A_,9,13,1,1 2hgc_A_,9,77,1,1 2hgc_A_,10,14,1,1 2hgc_A_,14,15,1,1 2hgc_A_,18,19,1,1 2hgc_A_,18,20,1,1 2hgc_A_,18,22,1,1 2hgc_A_,19,23,1,1 2hgc_A_,19,24,1,1 2hgc_A_,22,77,1,1 2hgc_A_,25,28,1,1 2hgc_A_,25,29,1,1 2hgc_A_,26,30,1,1 2hgc_A_,27,31,1,1 2hgc_A_,27,51,1,1 2hgc_A_,28,32,1,1 2hgc_A_,29,33,1,1 2hgc_A_,30,34,1,1 2hgc_A_,30,51,1,1 2hgc_A_,31,35,1,1 2hgc_A_,32,36,1,1 2hgc_A_,33,37,1,1 2hgc_A_,34,38,1,1 2hgc_A_,34,47,1,1 2hgc_A_,35,39,1,1 2hgc_A_,36,40,1,1 2hgc_A_,36,41,1,1 2hgc_A_,38,39,1,1 2hgc_A_,39,64,1,1 2hgc_A_,40,62,1,1 2hgc_A_,41,62,1,1 2hgc_A_,43,60,1,1 2hgc_A_,46,53,1,1 2hgc_A_,48,51,1,1 2hgc_A_,49,50,1,1 2hgc_A_,49,51,1,1 2hgc_A_,49,53,1,1 2hgc_A_,62,65,1,1 2hgc_A_,62,66,1,1 2hgc_A_,63,67,1,1 2hgc_A_,64,68,1,1 2hgc_A_,65,69,1,1 2hgc_A_,66,70,1,1 2hgc_A_,67,70,1,1 2hgc_A_,67,71,1,1 2hgc_A_,68,71,1,1 2hgc_A_,68,72,1,1 2hgc_A_,73,75,1,1