pair,contact1,contact2,flow1,flow2 2csh_A_,11,19,1,1 2csh_A_,13,17,1,1 2csh_A_,13,25,1,1 2csh_A_,13,28,1,1 2csh_A_,13,32,1,1 2csh_A_,15,28,1,1 2csh_A_,21,25,1,1 2csh_A_,22,26,1,1 2csh_A_,23,27,1,1 2csh_A_,26,29,1,1 2csh_A_,26,30,1,1 2csh_A_,27,31,1,1 2csh_A_,38,47,1,1 2csh_A_,40,44,1,1 2csh_A_,40,45,1,1 2csh_A_,40,56,1,1 2csh_A_,43,56,1,1 2csh_A_,50,53,1,1 2csh_A_,50,54,1,1 2csh_A_,51,55,1,1 2csh_A_,53,56,1,1 2csh_A_,53,57,1,1 2csh_A_,54,58,1,1 2csh_A_,56,59,1,1 2csh_A_,57,60,1,1 2csh_A_,57,61,1,1 2csh_A_,58,61,1,1 2csh_A_,66,75,1,1 2csh_A_,68,73,1,1 2csh_A_,68,84,1,1 2csh_A_,71,84,1,1 2csh_A_,77,81,1,1 2csh_A_,78,82,1,1 2csh_A_,79,83,1,1 2csh_A_,80,84,1,1 2csh_A_,81,85,1,1 2csh_A_,82,86,1,1 2csh_A_,84,87,1,1 2csh_A_,84,88,1,1 2csh_A_,85,89,1,1 2csh_A_,86,90,1,1 2csh_A_,87,91,1,1 2csh_A_,89,93,1,1 2csh_A_,90,94,1,1 2csh_A_,91,95,1,1 2csh_A_,92,96,1,1 2csh_A_,97,100,1,1 2csh_A_,103,104,1,1