#include <iostream>
#include <vector>
using namespace std;

int main() {
    vector<int> alpha(26, 0);
    string s, t;
    cin >> s >>t;
    for(const char& c: t) {
        ++alpha[c - 'a'];
    }
    for(const char& c: s) {
        if(alpha[c - 'a'] == 0) {
            cout << "false" << endl;
            return 0;
        }
    }
    cout << "true" << endl;
    return 0;
}