#include<stdio.h>


int main()
{
    int a,b,a1=0,b1=0;
    
    scanf("%d %d",&a,&b);
    
    a1=a/100+(a/10-a/100*10)*10+(a%10)*100;
    b1=b/100+(b/10-b/100*10)*10+(b%10)*100;
    if(a1>b1) printf("%d",a1);
    else printf("%d",b1);
    
    
    
    return 0;
}