pair,contact1,contact2,flow1,flow2 4nga_L_,1,4,1,1 4nga_L_,1,15,1,1 4nga_L_,2,15,1,1 4nga_L_,4,7,1,1 4nga_L_,5,8,1,1 4nga_L_,6,9,1,1 4nga_L_,6,11,1,1 4nga_L_,6,13,1,1 4nga_L_,7,9,1,1 4nga_L_,7,21,1,1 4nga_L_,9,12,1,1 4nga_L_,10,36,1,1 4nga_L_,10,38,1,1 4nga_L_,11,26,1,1 4nga_L_,12,24,1,1 4nga_L_,12,26,1,1 4nga_L_,14,22,1,1 4nga_L_,14,24,1,1 4nga_L_,16,20,1,1 4nga_L_,16,22,1,1 4nga_L_,17,20,1,1 4nga_L_,23,35,1,1 4nga_L_,24,38,1,1 4nga_L_,28,41,1,1 4nga_L_,29,46,1,1 4nga_L_,30,39,1,1 4nga_L_,32,35,1,1 4nga_L_,32,37,1,1 4nga_L_,34,36,1,1 4nga_L_,34,37,1,1 4nga_L_,49,53,1,1 4nga_L_,50,54,1,1 4nga_L_,52,55,1,1