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

int main() {
	// Complete the program
    string a, b; 
    cin >> a; 
    cin >> b; 
    
    cout << a.size() << " " << b.size() << endl; 
    cout << a + b << endl;
    
    char temp = b[0]; 
    b[0] = a[0];
    a[0] = temp; 
    
    cout << a << " " << b << endl;
    
    
    return 0;
}