pair,contact1,contact2,flow1,flow2 1arq_A_,1,6,1,1 1arq_A_,2,4,1,1 1arq_A_,3,5,1,1 1arq_A_,4,5,1,1 1arq_A_,5,6,1,1 1arq_A_,11,13,1,1 1arq_A_,15,18,1,1 1arq_A_,15,19,1,1 1arq_A_,16,20,1,1 1arq_A_,17,21,1,1 1arq_A_,18,22,1,1 1arq_A_,19,23,1,1 1arq_A_,20,24,1,1 1arq_A_,21,25,1,1 1arq_A_,22,26,1,1 1arq_A_,23,27,1,1 1arq_A_,24,28,1,1 1arq_A_,25,29,1,1 1arq_A_,26,31,1,1 1arq_A_,27,30,1,1 1arq_A_,31,32,1,1 1arq_A_,32,35,1,1 1arq_A_,32,36,1,1 1arq_A_,33,37,1,1 1arq_A_,34,38,1,1 1arq_A_,35,39,1,1 1arq_A_,36,40,1,1 1arq_A_,37,41,1,1 1arq_A_,38,42,1,1 1arq_A_,40,43,1,1 1arq_A_,41,44,1,1 1arq_A_,42,46,1,1 1arq_A_,43,47,1,1 1arq_A_,44,47,1,1 1arq_A_,44,51,1,1 1arq_A_,47,52,1,1 1arq_A_,48,51,1,1