#include <iostream>
using namespace std;

int main()

{
    
    int a,b,c,d;
    cin>>a>>b;
    c=100*(a%10)+(a-a%10)%100+(a/100)%10;
    d=100*(b%10)+(b-b%10)%100+(b/100)%10;
    if(c>d)
    cout<<c;
    if(d>c)
    cout<<d;
    if(c==d)
    cout<<c;
    //system ("pause");
    return 0;}