import java.util.ArrayDeque;
import java.util.Arrays;
import java.util.Deque;
import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;

public class Main {

	@SuppressWarnings("resource")
	public static void main(String args[]) {
		Scanner scanner = new Scanner(System.in);
		String s[]=scanner.next().split("");
		Deque<String>que=new ArrayDeque<>();
		que.addAll(Arrays.asList(s));
		dfs("",que);
		System.out.println(set.size());
	}

	static Set<String>set=new HashSet<>();
	private static void dfs(String string, Deque<String> que) {
		if(que.isEmpty()) {
			set.add(string);
			return;
		}
		Deque<String>que1=new ArrayDeque<>(que);
		Deque<String>que2=new ArrayDeque<>(que);
		String t=string+que1.pop();
		String c=string+que2.removeLast();
		dfs(t,que1);
		dfs(c,que2);
	}
}