BOJ-2908

#include <iostream>

using namespace std;

int func(int a) {
	int ans = 0;
	for(int i=a;i;i/=10) {
		ans = ans*10 + i%10;
  }	
	return ans;
}

int main() {
	int a,b;
	cin >> a >> b;
	if (a>b) {
    cout << func(a) << endl;
  }
  else {
    cout << func(b) << endl;
  }
  return 0;
}