#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using vi = vector<int>;
using vl = vector<ll>;
using pi = pair<int,int>;
using pl = pair<ll,ll>;
#define all(x) x.begin(),x.end()
#define rep(i,j,n) for (long long i = j; i < (long long)(n); i++)
const long long MOD = 1000000007;
const long long MOD2 = 998244353;
const int INF = ((1<<30)-1);
const long long LINF = (1LL<<60);
const double PI = 3.141592653589793238;
template<class T> inline void chmax(T& a, T b) {if (a < b) {a = b;}}
template<class T> inline void chmin(T& a, T b) {if (a > b) {a = b;}}


int solve(){
    string s,t; cin >> s >> t;
    reverse(all(s));
    reverse(all(t));
    if(s.size() > t.size())swap(s,t);
    int n = t.size();
    int i = 0;
    string ans;
    int now = 0;
    while(i < n){
        int a=0,b=0;
        if(i < s.size())a = s[i]-'0';
        b = t[i]-'0';
        now += a+b;
        ans.push_back(char('0'+now%10));
        now /= 10;
        ++i;
    }
    rep(i,0,ans.size())cout << ans[ans.size()-1-i];
    cout << endl;

    return 0;
}

int main(){
    cout << fixed << setprecision(10);
    ios::sync_with_stdio(0), cin.tie(0);
    int t = 1; 
    //cin >> t;
    for(int i = 0; i < t; i++){
        solve();
    }
	return 0;
}