#include <cstdio>
#include <algorithm>

using namespace std;

int main(){

  int a, b;
  scanf( "%d %d", &a, &b );

  int c, d;
  c = (a%10)*100 + ((a/10)%10) * 10 + ((a/10)/10);  
  d = (b%10)*100 + ((b/10)%10) * 10 + ((b/10)/10);

  printf( "%d\n", max(c,d) );

  return 0;
}