#include <iostream.h>

double eval(int *pj)
{
  double sum = 0.0;
  int i;
  for(i = 0; i < 50; i++)
    sum += (double) (pj[i] == 1 ? 1 : 0);

  for(i = 50; i < 100; i++)
    sum += (double) (pj[i] == 1 ? 0 : 1);

  return sum;
}