nUsine = 3;
nDistrib = 6;

capacity = [180, 230, 70];
demand = [153, 131, 55, 67, 27, 12];

cost = array2d(1..nDistrib, 1..nUsine,  [
  569, 139, 672, 10, 465, 138,
  231, 268, 313, 248, 729, 129,
  157, 623, 153, 454, 936, 335])