#include <stdio.h>
#include <math.h>

int main(void){
    int a,b,i,x;
    scanf("%d%d", &a, &b);
    a=a/100+(((a%100)/10)*10)+((a%100)%10)*100;
    b=b/100+(((b%100)/10)*10)+((b%100)%10)*100;
    if(a>b) printf("%d",a);
    else printf("%d", b);
}