int main() {
	// Complete the program
    string a , b , c;
    cin>>a>>b;
    cout<<a.length()<<" "<<b.length()<<endl;
    cout<<(a+b)<<endl;
    cout<<(b.substr(0,1)+a.substr(1,a.length()))<<" "<<(a.substr(0,1)+b.substr(1,b.length()));
    return 0;
}