pair,contact1,contact2,flow1,flow2
4aah_B_,2,4,1,1
4aah_B_,8,11,1,1
4aah_B_,16,19,1,1
4aah_B_,23,26,1,1
4aah_B_,25,29,1,1
4aah_B_,26,28,1,1
4aah_B_,26,29,1,1
4aah_B_,29,31,1,1
4aah_B_,33,37,1,1
4aah_B_,34,38,1,1
4aah_B_,36,39,1,1
4aah_B_,38,42,1,1
4aah_B_,39,43,1,1
4aah_B_,40,44,1,1
4aah_B_,41,45,1,1
4aah_B_,42,46,1,1
4aah_B_,43,47,1,1
4aah_B_,44,48,1,1
4aah_B_,45,49,1,1
4aah_B_,46,50,1,1
4aah_B_,47,51,1,1
4aah_B_,48,52,1,1
4aah_B_,49,53,1,1
4aah_B_,50,54,1,1
4aah_B_,51,55,1,1
4aah_B_,52,56,1,1
4aah_B_,53,57,1,1
4aah_B_,54,66,1,1
4aah_B_,55,59,1,1
4aah_B_,56,59,1,1
4aah_B_,58,62,1,1
4aah_B_,61,63,1,1
4aah_B_,66,68,1,1