pair,contact1,contact2,flow1,flow2
3whu_B_,1,4,1,1
3whu_B_,1,5,1,1
3whu_B_,3,7,1,1
3whu_B_,6,9,1,1
3whu_B_,6,14,1,1
3whu_B_,8,10,1,1
3whu_B_,9,12,1,1
3whu_B_,9,14,1,1
3whu_B_,10,23,1,1
3whu_B_,11,13,1,1
3whu_B_,13,15,1,1
3whu_B_,16,51,1,1
3whu_B_,17,20,1,1
3whu_B_,17,21,1,1
3whu_B_,18,22,1,1
3whu_B_,19,22,1,1
3whu_B_,20,23,1,1
3whu_B_,21,25,1,1
3whu_B_,22,25,1,1
3whu_B_,22,26,1,1
3whu_B_,28,31,1,1
3whu_B_,28,32,1,1
3whu_B_,29,33,1,1
3whu_B_,30,34,1,1
3whu_B_,31,35,1,1
3whu_B_,32,36,1,1
3whu_B_,33,37,1,1
3whu_B_,34,38,1,1
3whu_B_,35,39,1,1
3whu_B_,36,40,1,1
3whu_B_,37,41,1,1
3whu_B_,38,42,1,1
3whu_B_,39,43,1,1
3whu_B_,40,43,1,1
3whu_B_,40,44,1,1
3whu_B_,42,45,1,1
3whu_B_,43,45,1,1
3whu_B_,44,49,1,1
3whu_B_,46,48,1,1
3whu_B_,48,50,1,1
3whu_B_,52,55,1,1
3whu_B_,52,56,1,1
3whu_B_,53,57,1,1
3whu_B_,54,58,1,1