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#include <iostream>
#include <bitset>
#include <vector>
#include <algorithm>
#include <cmath>

using namespace std;

const string TEMP = "01234565789";

void reverseString(string &a) {
	for (int i = 0; i < a.size()/2; i++)
		swap(a[i],a[a.size()-i-1]);
}

void solve() {
	int tmp=0;
	string a, b, ans;
	cin >> a >> b;

	if (a.size() < b.size())
		swap(a,b);
	
	reverseString(a);
	reverseString(b);

	for (int i = 0; i < b.size(); i++) {
		tmp += (a[i]-'0');
		tmp += (b[i]-'0');
		ans += TEMP[tmp%10];
		tmp /= 10;
	}
	for (int i = b.size(); i < a.size(); i++) {
		tmp += (a[i]-'0');
		ans += TEMP[tmp%10];
		tmp /= 10;
	}
	if (tmp > 0)
		ans += "0";
	
	reverseString(ans);
	
	cout << ans;
}

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0); cout.tie(0);
	
	solve();
	cout << '\n';

	return 0;
}