#include <iostream>

using namespace std;

int br[2];

int okreni(int iN){ return ( (iN%10)*100 + (iN/10%10)*10 + (iN/100) ); }

int main(int argc, char** argv){
	scanf("%d %d", &br[0], &br[1]);
	if(okreni(br[0]) > okreni(br[1])) cout << okreni(br[0]);
	else cout << okreni(br[1]);
	cout << endl;
	// "1. " << (312/100);
	// "2. " << (312/10%10);
	// "3. " << (312%10);
	return 0;
}