//my solution

include

using namespace std;

int main() { string a,b; cin>>a; cin>>b;

cout<<a.size()<<" "<<b.size()<<"\n";

cout<<a+b<<"\n";

char ca1 = b[0];
char cb1 = a[0];

a[0] = ca1;
b[0] = cb1;

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

return 0;

}