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#include <iostream>
#include <string>

namespace {

    using std::cin;
    using std::cout;
    using std::string;
    using std::getline;
    using std::swap;

    bool add_digits(char & a, char b) noexcept {
        a += b - '0';
        if (a > '9') {
            a -= '9' - '0' + 1;
            return true;
        } else {
            return false;
        }
    }

    void print(string const & s) noexcept {
        for (auto const & c : s)
            cout << c;
    }
}

int main() {
    string a, b;
    getline(cin, a);
    getline(cin, b);
    if (a.length() < b.length())
        swap(a, b);
    size_t pos_a = a.length() - 1;
    bool overflow = false;
    bool extra_digit = false;
    for (size_t k = b.length(); k > 0; --k) {
        if (overflow)
            ++a[pos_a];
        overflow = add_digits(a[pos_a], b[k - 1]);
        if (pos_a > 0)
            --pos_a;
        else if (overflow)
            extra_digit = true;
    }
    if (!extra_digit) {
        while (overflow && pos_a > 0)
            overflow = add_digits(a[pos_a--], '1');
        if (overflow)
            extra_digit = add_digits(a[0], '1');
    }
    if (extra_digit)
        cout << '1';
    print(a);
    return 0;
}