#include<iostream>
#include<cstdlib>

using namespace std;

int main(int argc, char* argv[])
{
    if (argc <2)
        {
         cerr << "usage: " << argv[0] << " num1 ...\n";
         return EXIT_FAILURE;
        }
    int sum= 0;
    for (int k=1; k<argc; k++)
        sum+= atoi(argv[k]);
  
    cout << "= " << sum << endl;
    return EXIT_SUCCESS;
}