pair,contact1,contact2,flow1,flow2 2f4v_L_,2,5,1,1 2f4v_L_,2,6,1,1 2f4v_L_,3,7,1,1 2f4v_L_,4,8,1,1 2f4v_L_,5,9,1,1 2f4v_L_,18,20,1,1 2f4v_L_,20,22,1,1 2f4v_L_,22,25,1,1 2f4v_L_,29,81,1,1 2f4v_L_,30,57,1,1 2f4v_L_,31,79,1,1 2f4v_L_,32,55,1,1 2f4v_L_,34,53,1,1 2f4v_L_,35,37,1,1 2f4v_L_,38,49,1,1 2f4v_L_,39,49,1,1 2f4v_L_,42,45,1,1 2f4v_L_,42,88,1,1 2f4v_L_,44,45,1,1 2f4v_L_,48,50,1,1 2f4v_L_,49,51,1,1 2f4v_L_,49,88,1,1 2f4v_L_,50,66,1,1 2f4v_L_,52,64,1,1 2f4v_L_,54,62,1,1 2f4v_L_,56,60,1,1 2f4v_L_,65,96,1,1 2f4v_L_,72,102,1,1 2f4v_L_,72,104,1,1 2f4v_L_,74,77,1,1 2f4v_L_,76,77,1,1 2f4v_L_,78,102,1,1 2f4v_L_,80,97,1,1 2f4v_L_,82,83,1,1 2f4v_L_,84,95,1,1 2f4v_L_,86,89,1,1 2f4v_L_,97,99,1,1 2f4v_L_,98,105,1,1 2f4v_L_,106,116,1,1 2f4v_L_,106,118,1,1 2f4v_L_,107,109,1,1 2f4v_L_,110,113,1,1 2f4v_L_,114,117,1,1 2f4v_L_,116,118,1,1