pair,contact1,contact2,flow1,flow2 2n2r_A_,2,51,1,1 2n2r_A_,4,49,1,1 2n2r_A_,5,48,1,1 2n2r_A_,6,29,1,1 2n2r_A_,6,47,1,1 2n2r_A_,10,24,1,1 2n2r_A_,10,29,1,1 2n2r_A_,11,12,1,1 2n2r_A_,11,14,1,1 2n2r_A_,14,45,1,1 2n2r_A_,15,36,1,1 2n2r_A_,15,43,1,1 2n2r_A_,17,21,1,1 2n2r_A_,18,21,1,1 2n2r_A_,18,22,1,1 2n2r_A_,18,36,1,1 2n2r_A_,19,22,1,1 2n2r_A_,19,23,1,1 2n2r_A_,20,24,1,1 2n2r_A_,21,25,1,1 2n2r_A_,22,26,1,1 2n2r_A_,23,27,1,1 2n2r_A_,24,28,1,1 2n2r_A_,25,28,1,1 2n2r_A_,25,29,1,1 2n2r_A_,25,30,1,1 2n2r_A_,27,30,1,1 2n2r_A_,29,47,1,1 2n2r_A_,32,48,1,1 2n2r_A_,33,48,1,1 2n2r_A_,34,35,1,1 2n2r_A_,35,46,1,1 2n2r_A_,37,39,1,1 2n2r_A_,37,44,1,1 2n2r_A_,39,42,1,1