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

int a,b,c,a100,a10,a1,atotal,b100,b10,b1,btotal;
main()
{
     scanf("%d %d",&a,&b);
     
     a1 = (a % 100) % 10;
     a10 = ((a % 100) - a1) / 10;
     a100 = (a - a % 100) / 100;
     atotal = a1*100 + a10*10 + a100;
     
     b1 = (b % 100) % 10;
     b10 = ((b % 100) - b1) / 10;
     b100 = (b - b % 100) / 100;
     btotal = b1*100 + b10*10 + b100;
     
     if (atotal > btotal) {
                printf("%d",atotal);
                }
     else {
          printf("%d",btotal);
          }
}