#include <iostream>
#include <fstream>

using namespace std;

int sum(int a, int b)
{
	return a+b;
}

int main()
{
	ifstream f1("adunare.in");
	ofstream f2("adunare.out");

	int a, b;
	f1>>a>>b;

	f2 << sum(a, b);
}