#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;


int main() {
    string a, b, c{};
    cin >> a >> b;
    cout << a.size() << " " << b.size() << endl;
    cout << a + b << endl;


    for (double i = a.size(); i <= a.size(); ++i)
    {
        char temp = a[0];
        a[0] = b[0];
        b[0] = temp;

        cout << a << string(1, ' ') << b;
    }


    return 0;
}