#include <iostream>

class Numbers
{
  public:
    Numbers(char **strnums, int len);
    double mean();
  private:
    int length;
    int *nums;
};

Numbers::Numbers(char **strnums, int len)
{
  length = len;
  nums = new int[len];
  for (int i = 0; i < len; i++) {
    nums[i] = atoi(strnums[i]);
  }
}
  
double Numbers::mean()
{
  int sum = 0;
  for (int i = 0; i < length; i++) {
    sum += nums[i];
  }
  return (double) sum / length;
}
  
int main(int argc, char **argv)
{
  // new Numbers class
  Numbers *n = new Numbers(&argv[1], argc - 1);
  // print out the mean
  std::cout << "Mean: " << n->mean() << std::endl;
}