pair,contact1,contact2,flow1,flow2 2nna_B_,1,4,1,1 2nna_B_,2,5,1,1 2nna_B_,5,6,1,1 2nna_B_,10,35,1,1 2nna_B_,11,39,1,1 2nna_B_,12,33,1,1 2nna_B_,12,35,1,1 2nna_B_,14,31,1,1 2nna_B_,16,29,1,1 2nna_B_,18,27,1,1 2nna_B_,18,31,1,1 2nna_B_,20,25,1,1 2nna_B_,21,24,1,1 2nna_B_,24,25,1,1 2nna_B_,27,43,1,1 2nna_B_,28,44,1,1 2nna_B_,30,42,1,1 2nna_B_,31,38,1,1 2nna_B_,32,39,1,1 2nna_B_,32,40,1,1 2nna_B_,34,37,1,1 2nna_B_,37,53,1,1 2nna_B_,39,52,1,1 2nna_B_,39,53,1,1 2nna_B_,41,50,1,1 2nna_B_,43,45,1,1 2nna_B_,43,46,1,1 2nna_B_,43,47,1,1 2nna_B_,47,74,1,1 2nna_B_,49,73,1,1 2nna_B_,53,56,1,1 2nna_B_,56,60,1,1 2nna_B_,57,61,1,1 2nna_B_,58,62,1,1 2nna_B_,59,63,1,1 2nna_B_,60,64,1,1 2nna_B_,62,65,1,1 2nna_B_,63,66,1,1 2nna_B_,66,70,1,1 2nna_B_,67,68,1,1 2nna_B_,67,71,1,1 2nna_B_,68,72,1,1 2nna_B_,69,73,1,1 2nna_B_,70,74,1,1 2nna_B_,71,75,1,1 2nna_B_,73,76,1,1 2nna_B_,74,77,1,1 2nna_B_,75,78,1,1 2nna_B_,75,79,1,1 2nna_B_,76,80,1,1 2nna_B_,76,81,1,1 2nna_B_,77,82,1,1 2nna_B_,78,82,1,1 2nna_B_,78,83,1,1 2nna_B_,80,84,1,1 2nna_B_,81,85,1,1 2nna_B_,82,86,1,1 2nna_B_,84,88,1,1 2nna_B_,85,89,1,1 2nna_B_,87,91,1,1 2nna_B_,88,91,1,1 2nna_B_,88,92,1,1 2nna_B_,88,93,1,1 2nna_B_,89,94,1,1 2nna_B_,91,94,1,1 2nna_B_,92,95,1,1 2nna_B_,95,145,1,1 2nna_B_,97,115,1,1 2nna_B_,100,112,1,1 2nna_B_,102,110,1,1 2nna_B_,104,108,1,1 2nna_B_,107,153,1,1 2nna_B_,109,151,1,1 2nna_B_,111,149,1,1 2nna_B_,113,146,1,1 2nna_B_,114,147,1,1 2nna_B_,116,169,1,1 2nna_B_,120,168,1,1 2nna_B_,121,122,1,1 2nna_B_,122,166,1,1 2nna_B_,123,130,1,1 2nna_B_,123,151,1,1 2nna_B_,124,164,1,1 2nna_B_,125,128,1,1 2nna_B_,126,162,1,1 2nna_B_,133,154,1,1 2nna_B_,135,152,1,1 2nna_B_,136,137,1,1 2nna_B_,137,138,1,1 2nna_B_,137,150,1,1 2nna_B_,140,148,1,1 2nna_B_,142,146,1,1 2nna_B_,142,148,1,1 2nna_B_,144,146,1,1 2nna_B_,158,161,1,1 2nna_B_,163,180,1,1 2nna_B_,164,166,1,1 2nna_B_,165,178,1,1 2nna_B_,167,176,1,1 2nna_B_,169,171,1,1 2nna_B_,169,172,1,1 2nna_B_,179,181,1,1