pair,contact1,contact2,flow1,flow2 4z28_A_,2,4,1,1 4z28_A_,2,5,1,1 4z28_A_,2,6,1,1 4z28_A_,3,7,1,1 4z28_A_,5,8,1,1 4z28_A_,6,9,1,1 4z28_A_,12,14,1,1 4z28_A_,13,127,1,1 4z28_A_,14,22,1,1 4z28_A_,15,125,1,1 4z28_A_,16,18,1,1 4z28_A_,16,19,1,1 4z28_A_,16,20,1,1 4z28_A_,17,121,1,1 4z28_A_,17,122,1,1 4z28_A_,17,123,1,1 4z28_A_,20,44,1,1 4z28_A_,20,45,1,1 4z28_A_,21,43,1,1 4z28_A_,23,41,1,1 4z28_A_,25,39,1,1 4z28_A_,27,37,1,1 4z28_A_,29,31,1,1 4z28_A_,29,32,1,1 4z28_A_,29,35,1,1 4z28_A_,33,35,1,1 4z28_A_,34,64,1,1 4z28_A_,36,62,1,1 4z28_A_,38,60,1,1 4z28_A_,40,58,1,1 4z28_A_,42,56,1,1 4z28_A_,44,46,1,1 4z28_A_,44,49,1,1 4z28_A_,44,50,1,1 4z28_A_,44,51,1,1 4z28_A_,44,53,1,1 4z28_A_,46,49,1,1 4z28_A_,51,56,1,1 4z28_A_,51,75,1,1 4z28_A_,54,77,1,1 4z28_A_,55,77,1,1 4z28_A_,56,80,1,1 4z28_A_,59,72,1,1 4z28_A_,61,70,1,1 4z28_A_,63,68,1,1 4z28_A_,64,67,1,1 4z28_A_,67,92,1,1 4z28_A_,69,90,1,1 4z28_A_,70,88,1,1 4z28_A_,70,89,1,1 4z28_A_,71,88,1,1 4z28_A_,73,86,1,1 4z28_A_,75,82,1,1 4z28_A_,75,84,1,1 4z28_A_,75,86,1,1 4z28_A_,77,79,1,1 4z28_A_,77,80,1,1 4z28_A_,81,83,1,1 4z28_A_,82,84,1,1 4z28_A_,85,108,1,1 4z28_A_,87,106,1,1 4z28_A_,88,122,1,1 4z28_A_,89,104,1,1 4z28_A_,91,102,1,1 4z28_A_,93,95,1,1 4z28_A_,93,100,1,1 4z28_A_,98,99,1,1 4z28_A_,101,124,1,1 4z28_A_,102,123,1,1 4z28_A_,103,122,1,1 4z28_A_,104,121,1,1 4z28_A_,105,120,1,1 4z28_A_,105,122,1,1 4z28_A_,106,119,1,1 4z28_A_,107,118,1,1 4z28_A_,109,116,1,1 4z28_A_,111,114,1,1 4z28_A_,117,119,1,1