pair,contact1,contact2,flow1,flow2 8ifd_2U_,1,4,1,1 8ifd_2U_,2,5,1,1 8ifd_2U_,5,8,1,1 8ifd_2U_,6,9,1,1 8ifd_2U_,7,10,1,1 8ifd_2U_,10,13,1,1 8ifd_2U_,13,16,1,1 8ifd_2U_,15,18,1,1 8ifd_2U_,15,19,1,1 8ifd_2U_,20,23,1,1 8ifd_2U_,27,30,1,1 8ifd_2U_,29,39,1,1 8ifd_2U_,31,34,1,1 8ifd_2U_,35,38,1,1 8ifd_2U_,35,39,1,1 8ifd_2U_,35,40,1,1 8ifd_2U_,37,41,1,1 8ifd_2U_,40,44,1,1 8ifd_2U_,41,45,1,1 8ifd_2U_,42,46,1,1 8ifd_2U_,43,47,1,1 8ifd_2U_,44,48,1,1 8ifd_2U_,48,51,1,1 8ifd_2U_,64,67,1,1 8ifd_2U_,65,68,1,1 8ifd_2U_,70,108,1,1 8ifd_2U_,70,109,1,1 8ifd_2U_,72,109,1,1 8ifd_2U_,72,111,1,1 8ifd_2U_,73,76,1,1 8ifd_2U_,73,113,1,1 8ifd_2U_,74,77,1,1 8ifd_2U_,75,113,1,1 8ifd_2U_,76,79,1,1 8ifd_2U_,77,80,1,1 8ifd_2U_,82,85,1,1 8ifd_2U_,83,87,1,1 8ifd_2U_,84,88,1,1 8ifd_2U_,85,89,1,1 8ifd_2U_,86,90,1,1 8ifd_2U_,86,119,1,1 8ifd_2U_,87,91,1,1 8ifd_2U_,89,92,1,1 8ifd_2U_,98,122,1,1 8ifd_2U_,100,122,1,1 8ifd_2U_,100,124,1,1 8ifd_2U_,101,103,1,1 8ifd_2U_,101,105,1,1 8ifd_2U_,102,107,1,1 8ifd_2U_,102,124,1,1 8ifd_2U_,103,106,1,1 8ifd_2U_,108,126,1,1 8ifd_2U_,108,127,1,1 8ifd_2U_,110,127,1,1 8ifd_2U_,110,129,1,1 8ifd_2U_,112,135,1,1 8ifd_2U_,121,142,1,1 8ifd_2U_,123,142,1,1 8ifd_2U_,123,144,1,1 8ifd_2U_,125,144,1,1 8ifd_2U_,125,146,1,1 8ifd_2U_,129,132,1,1 8ifd_2U_,129,133,1,1 8ifd_2U_,130,134,1,1 8ifd_2U_,131,135,1,1 8ifd_2U_,132,136,1,1 8ifd_2U_,133,137,1,1 8ifd_2U_,134,138,1,1 8ifd_2U_,135,138,1,1 8ifd_2U_,135,139,1,1 8ifd_2U_,136,140,1,1 8ifd_2U_,136,141,1,1