#include <bits/stdc++.h>
using namespace std;
unsigned randint(unsigned _begin,unsigned _end){
	random_device rd;
	unsigned sd=rd();
	mt19937 engine(sd);
	return engine();
}
int main()
{
	int a,b;cin >> a >> b;
	int rdn=2147483646;
	while(rdn!=a+b){
	    rdn=randint((a+b)*-1,a+b);
	}
	cout << rdn;
	return 0;
}