pair,contact1,contact2,flow1,flow2 1ds2_I_,2,4,1,1 1ds2_I_,2,28,1,1 1ds2_I_,3,6,1,1 1ds2_I_,6,8,1,1 1ds2_I_,8,33,1,1 1ds2_I_,10,29,1,1 1ds2_I_,12,13,1,1 1ds2_I_,12,27,1,1 1ds2_I_,13,27,1,1 1ds2_I_,15,26,1,1 1ds2_I_,16,48,1,1 1ds2_I_,17,25,1,1 1ds2_I_,18,19,1,1 1ds2_I_,18,45,1,1 1ds2_I_,18,46,1,1 1ds2_I_,19,22,1,1 1ds2_I_,19,23,1,1 1ds2_I_,20,43,1,1 1ds2_I_,21,23,1,1 1ds2_I_,21,25,1,1 1ds2_I_,24,50,1,1 1ds2_I_,27,30,1,1 1ds2_I_,27,31,1,1 1ds2_I_,28,32,1,1 1ds2_I_,29,33,1,1 1ds2_I_,30,34,1,1 1ds2_I_,31,35,1,1 1ds2_I_,32,36,1,1 1ds2_I_,33,37,1,1 1ds2_I_,34,38,1,1 1ds2_I_,35,38,1,1 1ds2_I_,35,40,1,1 1ds2_I_,36,39,1,1 1ds2_I_,38,41,1,1 1ds2_I_,38,42,1,1 1ds2_I_,46,47,1,1