#include <cstdio>
#include <iostream>
#include <cstdlib>
using std::cout;
using std::endl;
int main(int argc, char **argv)
{
double sum=0;
if(argc > 1)
{
for(int i = 1; i < argc; i++)
sum+= atof(argv[i]);
cout<< "Sum is " << sum << endl;
} else {
cout<< "No numbers" << endl;
}
return 0;
}