pair,contact1,contact2,flow1,flow2 2l4t_A_,4,7,1,1 2l4t_A_,9,11,1,1 2l4t_A_,10,112,1,1 2l4t_A_,12,111,1,1 2l4t_A_,14,109,1,1 2l4t_A_,16,107,1,1 2l4t_A_,17,106,1,1 2l4t_A_,18,105,1,1 2l4t_A_,20,102,1,1 2l4t_A_,20,103,1,1 2l4t_A_,21,28,1,1 2l4t_A_,23,26,1,1 2l4t_A_,23,28,1,1 2l4t_A_,25,100,1,1 2l4t_A_,29,61,1,1 2l4t_A_,32,58,1,1 2l4t_A_,32,59,1,1 2l4t_A_,34,56,1,1 2l4t_A_,36,39,1,1 2l4t_A_,36,54,1,1 2l4t_A_,40,42,1,1 2l4t_A_,40,43,1,1 2l4t_A_,41,44,1,1 2l4t_A_,43,46,1,1 2l4t_A_,43,48,1,1 2l4t_A_,46,50,1,1 2l4t_A_,47,53,1,1 2l4t_A_,50,51,1,1 2l4t_A_,53,86,1,1 2l4t_A_,53,88,1,1 2l4t_A_,57,75,1,1 2l4t_A_,62,116,1,1 2l4t_A_,63,67,1,1 2l4t_A_,65,69,1,1 2l4t_A_,67,70,1,1 2l4t_A_,67,116,1,1 2l4t_A_,70,111,1,1 2l4t_A_,74,76,1,1 2l4t_A_,76,110,1,1 2l4t_A_,78,85,1,1 2l4t_A_,78,108,1,1 2l4t_A_,79,108,1,1 2l4t_A_,80,83,1,1 2l4t_A_,81,106,1,1 2l4t_A_,84,86,1,1 2l4t_A_,84,87,1,1 2l4t_A_,85,88,1,1 2l4t_A_,89,93,1,1 2l4t_A_,90,94,1,1 2l4t_A_,91,95,1,1 2l4t_A_,92,96,1,1 2l4t_A_,93,96,1,1 2l4t_A_,93,97,1,1 2l4t_A_,94,98,1,1 2l4t_A_,99,102,1,1 2l4t_A_,101,102,1,1 2l4t_A_,111,115,1,1 2l4t_A_,119,121,1,1