pair,contact1,contact2,flow1,flow2
4bkg_A_,2,18,1,1
4bkg_A_,3,64,1,1
4bkg_A_,3,65,1,1
4bkg_A_,4,16,1,1
4bkg_A_,5,65,1,1
4bkg_A_,5,66,1,1
4bkg_A_,5,68,1,1
4bkg_A_,6,14,1,1
4bkg_A_,7,68,1,1
4bkg_A_,7,70,1,1
4bkg_A_,8,11,1,1
4bkg_A_,8,12,1,1
4bkg_A_,10,12,1,1
4bkg_A_,15,65,1,1
4bkg_A_,19,22,1,1
4bkg_A_,20,56,1,1
4bkg_A_,20,58,1,1
4bkg_A_,20,62,1,1
4bkg_A_,23,26,1,1
4bkg_A_,24,28,1,1
4bkg_A_,24,55,1,1
4bkg_A_,25,29,1,1
4bkg_A_,25,53,1,1
4bkg_A_,26,30,1,1
4bkg_A_,27,31,1,1
4bkg_A_,28,32,1,1
4bkg_A_,29,33,1,1
4bkg_A_,30,34,1,1
4bkg_A_,31,35,1,1
4bkg_A_,32,37,1,1
4bkg_A_,33,36,1,1
4bkg_A_,38,41,1,1
4bkg_A_,39,42,1,1
4bkg_A_,41,73,1,1
4bkg_A_,43,71,1,1
4bkg_A_,44,51,1,1
4bkg_A_,45,48,1,1
4bkg_A_,45,69,1,1
4bkg_A_,46,49,1,1
4bkg_A_,52,55,1,1
4bkg_A_,55,59,1,1
4bkg_A_,56,59,1,1
4bkg_A_,56,60,1,1
4bkg_A_,57,62,1,1
4bkg_A_,58,61,1,1
4bkg_A_,63,66,1,1