pair,contact1,contact2,flow1,flow2 2abz_C_,2,19,1,1 2abz_C_,3,4,1,1 2abz_C_,3,18,1,1 2abz_C_,4,33,1,1 2abz_C_,5,16,1,1 2abz_C_,6,31,1,1 2abz_C_,7,14,1,1 2abz_C_,8,29,1,1 2abz_C_,9,12,1,1 2abz_C_,9,27,1,1 2abz_C_,9,61,1,1 2abz_C_,13,59,1,1 2abz_C_,15,56,1,1 2abz_C_,15,57,1,1 2abz_C_,17,55,1,1 2abz_C_,19,53,1,1 2abz_C_,24,27,1,1 2abz_C_,24,49,1,1 2abz_C_,25,28,1,1 2abz_C_,27,49,1,1 2abz_C_,28,30,1,1 2abz_C_,33,34,1,1 2abz_C_,36,40,1,1 2abz_C_,37,41,1,1 2abz_C_,38,42,1,1 2abz_C_,39,43,1,1 2abz_C_,42,44,1,1 2abz_C_,43,55,1,1 2abz_C_,47,54,1,1 2abz_C_,49,52,1,1