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#include<bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef string str;
typedef unsigned long long ull;
#define pb push_back
#define mp make_pair

string addition(string a, string b) {
    while(a.size() < b.size()) a = '0' + a;
    while(b.size() < a.size()) b = '0' + b;
    int carry = 0, sum = 0;
    string res = "";
    for(int i = a.size() - 1; i >= 0; --i) {
        sum = carry + int(a[i] - '0') + int(b[i] - '0');
        if(sum > 9) {
            res = char((sum % 10) + '0') + res;
            carry = 1;
        }
        else {
            res = char((sum % 10) + '0') + res;
            carry = 0;
        }
    }
    if(carry == 1) res = '1' + res;
    return res;
}

int main(){
    string a, b;
    cin >> a >> b;
    cout << addition(a, b);
}