pair,contact1,contact2,flow1,flow2 1u4a_A_,4,20,1,1 1u4a_A_,6,18,1,1 1u4a_A_,7,68,1,1 1u4a_A_,7,70,1,1 1u4a_A_,8,16,1,1 1u4a_A_,9,70,1,1 1u4a_A_,9,72,1,1 1u4a_A_,10,14,1,1 1u4a_A_,11,72,1,1 1u4a_A_,11,74,1,1 1u4a_A_,24,61,1,1 1u4a_A_,25,28,1,1 1u4a_A_,26,30,1,1 1u4a_A_,26,57,1,1 1u4a_A_,27,31,1,1 1u4a_A_,27,55,1,1 1u4a_A_,28,32,1,1 1u4a_A_,29,33,1,1 1u4a_A_,30,34,1,1 1u4a_A_,31,35,1,1 1u4a_A_,32,36,1,1 1u4a_A_,33,37,1,1 1u4a_A_,34,38,1,1 1u4a_A_,34,39,1,1 1u4a_A_,45,73,1,1 1u4a_A_,45,75,1,1 1u4a_A_,46,53,1,1 1u4a_A_,47,71,1,1 1u4a_A_,48,51,1,1 1u4a_A_,57,58,1,1 1u4a_A_,58,62,1,1 1u4a_A_,59,63,1,1 1u4a_A_,60,64,1,1