#include <iostream>
#include <algorithm>
using namespace std;

int main() {
	string s;
	cin >> s;
	string s2 = s;
	int cnt = 0;
	
	while(1){
		next_permutation(s2.begin(), s2.end());
		if(s == s2){
			break;
		}
		cnt++;
	}
	
	cout << cnt << endl;
	
	return 0;
}