#include <iostream>
#include <cstdio>
#include <cmath>
#include <ctime>
#include <cstdlib>
#include <cassert>
#include <vector>
#include <list>
#include <stack>
#include <queue>
#include <deque>
#include <map>
#include <set>
#include <bitset>
#include <string>
#include <algorithm>
#include <utility>
#define llint long long
#define inf 1e18
#define rep(x, s, t) for(llint (x) = (s); (x) < (t); (x)++)
#define Rep(x, s, t) for(llint (x) = (s); (x) <= (t); (x)++)
#define chmin(x, y) (x) = min((x), (y))
#define chmax(x, y) (x) = max((x), (y))

using namespace std;
typedef pair<llint, llint> P;

string s, t;

llint get(string s)
{
	llint mul = 1;
	if(s[0] == '-'){
		mul = -1;
		s = s.substr(1);
	}
	
	llint ret = 0;
	for(int i = 0; i < s.size(); i++){
		ret *= 10;
		ret += s[i]-'0';
	}
	ret *= mul;
	
	return ret;
}

int main(void)
{
	ios::sync_with_stdio(0);
	cin.tie(0);
	
	cin >> s >> t;
	if(t[0] != '-'){
		if(get(s) != 0) cout << s+t << endl;
		else cout << get(t) << endl;
	}else cout << get(s) + get(t) << endl;
	
	return 0;
}