#include <iostream>

using namespace std;

string inserted_string(string s, const string& sub_s) {
    int max_char_pos = -1;
    char max_char = 0;
    for (int i = 0; i < s.size(); i++) {
        if (s[i] > max_char) {
            max_char = s[i];
            max_char_pos = i;
        }
    }
    s.insert(max_char_pos + 1, sub_s); // STL 偷懒
    return s;
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    string s, sub_s;

    while (cin >> s >> sub_s) {
        cout << inserted_string(s, sub_s) << endl;
    }

    return 0;
}