pair,contact1,contact2,flow1,flow2
7bwd_D_,2,4,1,1
7bwd_D_,6,8,1,1
7bwd_D_,7,10,1,1
7bwd_D_,7,11,1,1
7bwd_D_,10,14,1,1
7bwd_D_,11,14,1,1
7bwd_D_,12,15,1,1
7bwd_D_,14,17,1,1
7bwd_D_,15,18,1,1
7bwd_D_,15,19,1,1
7bwd_D_,25,28,1,1
7bwd_D_,29,33,1,1
7bwd_D_,30,34,1,1
7bwd_D_,35,38,1,1
7bwd_D_,35,39,1,1
7bwd_D_,36,40,1,1
7bwd_D_,38,42,1,1
7bwd_D_,39,43,1,1
7bwd_D_,41,45,1,1
7bwd_D_,43,46,1,1
7bwd_D_,43,47,1,1
7bwd_D_,44,48,1,1
7bwd_D_,46,49,1,1
7bwd_D_,47,50,1,1
7bwd_D_,47,51,1,1
7bwd_D_,51,56,1,1
7bwd_D_,60,61,1,1
7bwd_D_,60,63,1,1
7bwd_D_,62,66,1,1
7bwd_D_,63,67,1,1
7bwd_D_,64,68,1,1
7bwd_D_,67,70,1,1
7bwd_D_,67,71,1,1
7bwd_D_,68,72,1,1
7bwd_D_,77,80,1,1
7bwd_D_,77,81,1,1
7bwd_D_,79,82,1,1
7bwd_D_,79,83,1,1
7bwd_D_,81,85,1,1
7bwd_D_,82,85,1,1
7bwd_D_,82,86,1,1
7bwd_D_,84,88,1,1
7bwd_D_,85,89,1,1
7bwd_D_,86,89,1,1
7bwd_D_,87,91,1,1
7bwd_D_,88,92,1,1
7bwd_D_,89,93,1,1
7bwd_D_,92,94,1,1