pair,contact1,contact2,flow1,flow2 2l4z_A_,2,3,1,1 2l4z_A_,6,7,1,1 2l4z_A_,7,12,1,1 2l4z_A_,10,13,1,1 2l4z_A_,13,15,1,1 2l4z_A_,18,20,1,1 2l4z_A_,19,104,1,1 2l4z_A_,21,24,1,1 2l4z_A_,23,26,1,1 2l4z_A_,24,27,1,1 2l4z_A_,26,105,1,1 2l4z_A_,27,104,1,1 2l4z_A_,29,31,1,1 2l4z_A_,33,74,1,1 2l4z_A_,35,72,1,1 2l4z_A_,36,37,1,1 2l4z_A_,36,40,1,1 2l4z_A_,38,40,1,1 2l4z_A_,39,72,1,1 2l4z_A_,40,43,1,1 2l4z_A_,45,48,1,1 2l4z_A_,45,49,1,1 2l4z_A_,48,50,1,1 2l4z_A_,52,54,1,1 2l4z_A_,57,68,1,1 2l4z_A_,60,69,1,1 2l4z_A_,60,81,1,1 2l4z_A_,61,66,1,1 2l4z_A_,62,67,1,1 2l4z_A_,62,81,1,1 2l4z_A_,62,83,1,1 2l4z_A_,63,81,1,1 2l4z_A_,65,83,1,1 2l4z_A_,71,72,1,1 2l4z_A_,71,83,1,1 2l4z_A_,75,82,1,1 2l4z_A_,77,79,1,1 2l4z_A_,77,80,1,1 2l4z_A_,77,82,1,1 2l4z_A_,83,86,1,1 2l4z_A_,83,87,1,1 2l4z_A_,87,97,1,1 2l4z_A_,89,91,1,1 2l4z_A_,89,93,1,1 2l4z_A_,89,94,1,1 2l4z_A_,89,115,1,1 2l4z_A_,90,110,1,1 2l4z_A_,92,115,1,1 2l4z_A_,95,98,1,1 2l4z_A_,96,99,1,1 2l4z_A_,96,100,1,1 2l4z_A_,104,111,1,1 2l4z_A_,105,109,1,1 2l4z_A_,106,121,1,1 2l4z_A_,112,115,1,1 2l4z_A_,112,116,1,1 2l4z_A_,114,118,1,1 2l4z_A_,115,119,1,1 2l4z_A_,116,120,1,1