pair,contact1,contact2,flow1,flow2 8ifd_2d_,1,5,1,1 8ifd_2d_,2,6,1,1 8ifd_2d_,3,6,1,1 8ifd_2d_,3,7,1,1 8ifd_2d_,4,7,1,1 8ifd_2d_,5,8,1,1 8ifd_2d_,6,9,1,1 8ifd_2d_,14,28,1,1 8ifd_2d_,16,26,1,1 8ifd_2d_,18,20,1,1 8ifd_2d_,18,23,1,1 8ifd_2d_,20,21,1,1 8ifd_2d_,20,36,1,1 8ifd_2d_,20,40,1,1 8ifd_2d_,20,41,1,1 8ifd_2d_,20,42,1,1 8ifd_2d_,25,33,1,1 8ifd_2d_,25,34,1,1 8ifd_2d_,26,31,1,1 8ifd_2d_,27,30,1,1 8ifd_2d_,27,32,1,1 8ifd_2d_,28,31,1,1 8ifd_2d_,30,32,1,1 8ifd_2d_,33,37,1,1 8ifd_2d_,35,44,1,1 8ifd_2d_,36,44,1,1 8ifd_2d_,47,53,1,1 8ifd_2d_,49,52,1,1 8ifd_2d_,49,53,1,1 8ifd_2d_,50,54,1,1 8ifd_2d_,51,55,1,1 8ifd_2d_,53,56,1,1 8ifd_2d_,57,60,1,1 8ifd_2d_,63,67,1,1 8ifd_2d_,65,69,1,1 8ifd_2d_,66,70,1,1 8ifd_2d_,67,71,1,1 8ifd_2d_,68,72,1,1 8ifd_2d_,69,73,1,1 8ifd_2d_,72,75,1,1 8ifd_2d_,72,77,1,1 8ifd_2d_,73,76,1,1 8ifd_2d_,79,81,1,1 8ifd_2d_,82,84,1,1