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#include <bits/stdc++.h>

#define ll long long

using namespace std;

int main() {
    std::ios::sync_with_stdio(false);
    string A, B, C;
    cin >> A >> B;
    reverse(A.begin(), A.end());
    reverse(B.begin(), B.end());
    C.reserve(max(A.size(), B.size()) + 2);
    ll carry = 0, c;
    for(ll i = 0; i < max(A.size(), B.size()); i++) {
        c = carry;
        if(i < A.size())
            c += (A[i] - '0');
        if(i < B.size())
            c += (B[i] - '0');
        carry = c / 10;
        C.push_back((c % 10) + '0');
    }
    if(carry > 0)
        C.push_back(carry + '0');
    reverse(C.begin(), C.end());
    cout << C << "\n";
    return 0;
}