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

#include <iostream>
#include <string>
#include <tuple>
using namespace std;
int main()
{
	tuple <int, string> tp1;
	tuple <int, string> tp2;
	tp1 = make_tuple(0, "Hello");
	tp2 = make_tuple(1, "World");
	auto tp3 = tuple_cat(tp1, tp2);
	cout<<"("<<get<0>(tp3)<<", "<<get<1>(tp3)<<", "<<get<2>(tp3)<<", 
        "<<get<3>(tp3)<<")"<<endl;
	return 0;
}