pair,contact1,contact2,flow1,flow2 1n89_A_,5,8,1,1 1n89_A_,7,10,1,1 1n89_A_,7,11,1,1 1n89_A_,10,13,1,1 1n89_A_,10,14,1,1 1n89_A_,11,15,1,1 1n89_A_,12,17,1,1 1n89_A_,12,18,1,1 1n89_A_,13,52,1,1 1n89_A_,21,24,1,1 1n89_A_,22,25,1,1 1n89_A_,22,26,1,1 1n89_A_,23,27,1,1 1n89_A_,24,28,1,1 1n89_A_,28,31,1,1 1n89_A_,28,32,1,1 1n89_A_,33,36,1,1 1n89_A_,33,37,1,1 1n89_A_,34,38,1,1 1n89_A_,36,39,1,1 1n89_A_,37,40,1,1 1n89_A_,38,41,1,1 1n89_A_,41,44,1,1 1n89_A_,42,45,1,1 1n89_A_,44,47,1,1 1n89_A_,44,48,1,1 1n89_A_,45,49,1,1 1n89_A_,52,56,1,1 1n89_A_,53,57,1,1 1n89_A_,54,58,1,1 1n89_A_,55,59,1,1 1n89_A_,56,60,1,1 1n89_A_,57,61,1,1