t

#include<bits/stdc++.h>
using namespace std;
int main()
{
string a,b;
cin >> a >> b;
if(a.siz< a << endl << b;
else if(a.size() > b.size()) cout << b << endl << a;
else if(a<b) cout << a << endl << b;
else if(a>b) cout << b << endl << a;
return 0;
}