include

include

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;

}