double myeval (int ind) {
  double value = 0;

/*
 * fitness = x**2 where x is unsigned binary value of chromosome bits
 */
  for (int j = 1; j<= length; j++) {
    if (c[ind][j]) value += Math.pow((double)2.0, (double)(j-1));
  }
  value = value*value;

   return(value);
}