#include<iostream>
#include<fstream>




int a,b,sum;
int l=2000000000;
using namespace std;

int main() {
	ifstream myReadFile;
	myReadFile.open("adunare.in");
	if (myReadFile.is_open()) {
 
	myReadFile>>a;
	myReadFile>>b;
	}
	if (a%1==0 && b%1==0){
		if (a < l - b){
			sum=a+b;
		}
	}
	cout<<sum;
	myReadFile.close();
	ofstream myfile;
	myfile.open("adunare.out");
	myfile << sum;

	
	myfile.close();
	
}