// This program takes two command line arguments,
// assumed to be numbers, and displays their sum.
#include <iostream>
#include <cmath>  // Needed for atof
using namespace std;

int main(int argc, char *argv[])
{
   double total = 0;

   if (argc > 1)
   {
      for (int count = 1; count < argc; count++)
         total += atof(argv[count]);
      cout << total << endl;
   }
   return 0;
}