param N > 0, integer, default 69;

set I; 
set J := {1..2};

param m{I};
param n{I};
param iters{I};

var x{J};
var t_plus {I} >= 0;
var t_minus{I} >= 0;

minimize sum_dev: sum {i in I} (t_plus[i] + t_minus[i]);

subject to t_def {i in I}:
    t_plus[i] - t_minus[i] = log(iters[i]) - log(2)*x[1] - log(m[i] + n[i])*x[2];

data;

param: I: m n iters := include "namemniters"; 

solve;

display {j in J}: x[j];
display 2^x[1];