#include <iostream>

using namespace std;

int main() {
    long long a, b, v[10000], n = 0, i, j;
    cin >> a >> b;
    for (i = a; i != 0; i /= 10) {
        for (j = b; j != 0; j /= 10) {
            v[n] = i % 10 * 10 + j % 10;
            n++;
        }
    }

    for (i = b; i != 0; i /= 10) {
        for (j = a; j != 0; j /= 10) {
            v[n] = i % 10 * 10 + j % 10;
            n++;
        }
    }

    for (i = 0; i < n - 1; i++) {
        for (j = i + 1; j < n; j++)
            if (v[j] < v[i])
                swap(v[j], v[i]);
    }

    for(i = 0; i < n; i++){
        if(v[i] / 10 != 0){
            cout << v[i] << " ";
            break;
        }
    }
    cout << v[n-1];
    return 0;
}