pair,contact1,contact2,flow1,flow2 2col_B_,3,6,1,1 2col_B_,3,7,1,1 2col_B_,4,8,1,1 2col_B_,4,60,1,1 2col_B_,5,9,1,1 2col_B_,7,11,1,1 2col_B_,8,12,1,1 2col_B_,10,13,1,1 2col_B_,11,14,1,1 2col_B_,11,15,1,1 2col_B_,14,16,1,1 2col_B_,22,58,1,1 2col_B_,23,27,1,1 2col_B_,24,28,1,1 2col_B_,25,29,1,1 2col_B_,26,30,1,1 2col_B_,27,31,1,1 2col_B_,28,32,1,1 2col_B_,29,33,1,1 2col_B_,30,34,1,1 2col_B_,31,36,1,1 2col_B_,32,35,1,1 2col_B_,39,42,1,1 2col_B_,39,43,1,1 2col_B_,40,44,1,1 2col_B_,41,45,1,1 2col_B_,42,46,1,1 2col_B_,43,46,1,1 2col_B_,43,47,1,1 2col_B_,44,48,1,1 2col_B_,45,49,1,1 2col_B_,47,50,1,1 2col_B_,47,51,1,1 2col_B_,50,52,1,1 2col_B_,51,54,1,1 2col_B_,51,56,1,1 2col_B_,53,55,1,1 2col_B_,53,62,1,1 2col_B_,55,57,1,1 2col_B_,60,63,1,1 2col_B_,60,64,1,1 2col_B_,61,65,1,1 2col_B_,63,66,1,1