import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;

public class Main {
	static int[] bit;
	static String[] a;
	static Set<String> set;
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		String S = scan.next();
		scan.close();
		a = S.split("");
		bit = new int[a.length];
		set = new HashSet<String>();
		rec(0);
		System.out.println(set.size());

	}
	static void solve() {
		int l = 0;
		int r = a.length - 1;
		String []t = new String[bit.length];
		for(int i = 0; i < bit.length; i++) {
			if(bit[i] == 0) {
				t[i] = a[l];
				l ++;
			}else {
				t[i] = a[r];
				r --;
			}

		}
		set.add(con(t));
	}
	public static void rec(int k) {
        if(k == bit.length) {
        	solve();
            return;
        }
        rec(k + 1);
        bit[k] = 1;
        rec(k + 1);
        bit[k] = 0;
    }
	static String con(String[] s) {
		StringBuilder sb = new StringBuilder();
		for(int i = 0; i < s.length; i++) {
			sb.append(s[i]);
		}
		return sb.toString();
	}
}