pair,contact1,contact2,flow1,flow2 2y9u_A_,1,2,1,1 2y9u_A_,2,3,1,1 2y9u_A_,2,30,1,1 2y9u_A_,3,4,1,1 2y9u_A_,3,29,1,1 2y9u_A_,4,7,1,1 2y9u_A_,4,8,1,1 2y9u_A_,5,9,1,1 2y9u_A_,5,27,1,1 2y9u_A_,6,10,1,1 2y9u_A_,7,11,1,1 2y9u_A_,9,12,1,1 2y9u_A_,9,14,1,1 2y9u_A_,10,13,1,1 2y9u_A_,12,14,1,1 2y9u_A_,14,17,1,1 2y9u_A_,15,18,1,1 2y9u_A_,17,20,1,1 2y9u_A_,18,21,1,1 2y9u_A_,18,22,1,1 2y9u_A_,19,22,1,1 2y9u_A_,19,23,1,1 2y9u_A_,21,24,1,1 2y9u_A_,21,26,1,1 2y9u_A_,22,25,1,1 2y9u_A_,25,31,1,1 2y9u_A_,27,31,1,1 2y9u_A_,28,31,1,1 2y9u_A_,29,32,1,1 2y9u_A_,32,35,1,1 2y9u_A_,33,60,1,1 2y9u_A_,33,61,1,1 2y9u_A_,33,64,1,1 2y9u_A_,36,39,1,1 2y9u_A_,36,40,1,1 2y9u_A_,37,41,1,1 2y9u_A_,38,42,1,1 2y9u_A_,39,42,1,1 2y9u_A_,39,43,1,1 2y9u_A_,40,43,1,1 2y9u_A_,40,45,1,1 2y9u_A_,41,44,1,1 2y9u_A_,45,50,1,1 2y9u_A_,46,49,1,1 2y9u_A_,47,50,1,1 2y9u_A_,49,53,1,1 2y9u_A_,50,54,1,1 2y9u_A_,51,55,1,1 2y9u_A_,52,56,1,1 2y9u_A_,53,57,1,1 2y9u_A_,54,58,1,1 2y9u_A_,55,59,1,1 2y9u_A_,56,60,1,1 2y9u_A_,57,61,1,1 2y9u_A_,58,62,1,1 2y9u_A_,59,63,1,1 2y9u_A_,60,64,1,1 2y9u_A_,61,65,1,1 2y9u_A_,62,66,1,1 2y9u_A_,64,67,1,1