#include<cstdio>
#include<iostream>
#include<ctime>
#include<cmath>

using namespace std;
int main()
{
    int a1,a2,b1,b2;
    scanf("%d %d",&a1,&b1);
    a2 = (a1%10) * 100 + ((a1%100)/10) * 10  + (a1/100);
    b2 = (b1%10) * 100 + ((b1%100)/10) * 10 + (b1/100);
       if(a2 < b2) printf ("%d\n",b2);
          else if(b2 < a2) printf ("%d\n",a2);
          else if(a2 = b2) printf ("%d\n",a2);
//system("pause");
return 0;
}