pair,contact1,contact2,flow1,flow2 2w2n_E_,7,30,1,1 2w2n_E_,9,28,1,1 2w2n_E_,11,13,1,1 2w2n_E_,11,14,1,1 2w2n_E_,12,15,1,1 2w2n_E_,13,17,1,1 2w2n_E_,16,19,1,1 2w2n_E_,17,20,1,1 2w2n_E_,18,31,1,1 2w2n_E_,20,23,1,1 2w2n_E_,21,45,1,1 2w2n_E_,21,47,1,1 2w2n_E_,23,34,1,1 2w2n_E_,25,32,1,1 2w2n_E_,33,44,1,1 2w2n_E_,34,47,1,1 2w2n_E_,36,39,1,1 2w2n_E_,40,48,1,1 2w2n_E_,42,45,1,1 2w2n_E_,42,46,1,1 2w2n_E_,44,45,1,1