What will be the output of the following C++ code?

#include<iostream>
#include <string>
using namespace std;
template <class T>
class Print
{
   public:
	int operator()(T a){
		cout<<a<<endl;
	}
};
int main()
{
	Print<string> str;
	Print<int> integer;
	int a = 100;
	string s = "Hello World";
	str(s);
	integer(a);
	return 0;
}