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

public class Yuki052 {
    public static void main(String[] args) {
        Yuki052 hoge = new Yuki052();
    }

    Yuki052() {
        Scanner scanner = new Scanner(System.in);
        String S = scanner.next();
        Set<String> set = new HashSet<String>();
        for (int i = 0; i < 1 << S.length(); i++) {
            StringBuilder tmp = new StringBuilder();
            int a = 0;
            int b = S.length() - 1;
            for (int j = 0; j < S.length(); j++) {
                if ((i & (1 << j)) > 0) {
                    tmp.append(S.charAt(a));
                    a++;
                } else {
                    tmp.append(S.charAt(b));
                    b--;
                }
            }
            set.add(tmp.toString());
        }
        System.out.println(set.size());
    }

}