[1427] 소트인사이드

#include <iostream>
#include <algorithm>
#include <cstring>
using namespace std;
bool cmp(char &a, char &b)
{
	return a > b;
}

int main()
{
	char c[10];
	cin >> c;
	sort(c, c+ strlen(c), cmp);
	cout << c;
    
	return 0;
}