// Oldham, Jeffrey D.
// 2000 Jan 16
// CS1321
//
// Modified by:
// Massingill, Berna L.
// 2001 Jan

// Unary Natural Numbers Implemented Using Lists (Selected Pieces)

#include "unary.h"		// ASSUMES the other file is called unary.h.
#include <iostream>
#include <stdlib.h>		// has EXIT_SUCCESS


// A simple program to test partially your code.  Certainly more test
// code will need to be written.
// Given decimal numbers on the standard input, it prints their sum.

// The code assumes + for natural numbers, i.e., operator+(), has been
// implemented.

int main() {
  natural total = zero;
  natural n;
  while (cin >> n)
    total = total + n;

  cout << "The total is " << total << ".\n";

  return EXIT_SUCCESS;
}