#include <iostream>
#include <algorithm>
#include <cmath>
#include <cstdlib>
using namespace std;
int main()
{
    int a,b,c,d,f;
    cin>>a>>b;
    c=(a%10)*100+((a/10)%10)*10+a/100;
    d=(b%10)*100+((b/10)%10)*10+b/100;
    if(c>=d)
    cout<<c;
    if(d>c)
    cout<<d;
    return 0;
}