#include <stdio.h>
#include <bits/stdc++.h>
#include <atcoder/all>
using namespace atcoder;
using mint = modint;
using namespace std;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define Inf 2000000000



int main(){	
	
	mint::set_mod(573);
	vector dp(1005,vector<mint>(1005,0));
	dp[0][0] = 1;
	rep(i,1003){
		rep(j,i+1){
			dp[i+1][j] += dp[i][j];
			dp[i+1][j+1] += dp[i][j];
		}
	}
	
	vector<int> cnt(26,0);
	string s;
	cin>>s;
	int n = s.size();
	rep(i,s.size()){
		cnt[s[i]-'A']++;
	}
	
	mint ans = 1;
	rep(i,26){
		ans *= dp[n][cnt[i]];
		n -= cnt[i];
	}
	ans--;
	cout<<ans.val()<<endl;
	
	return 0;
	
}