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

int main()
{
    string a, b;

    cin >> a;
    cin >> b;

    cout << a.size() << " " << b.size() << endl;
    cout << a + b << endl;

    char temp = a[0];
    a[0] = b[0];
    b[0] = temp;

    cout << a << " " << b;
}