import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        Set<String> set = new HashSet<>();
        String S = sc.next();
        String [] arr = S.split("");
        int L = S.length();
        int N = (int)Math.pow(2,L-1);
        for(int i=0; i<N; i++){
            String t = Integer.toBinaryString(i);
            while(t.length()<L-1){
                t="0"+t;
            }
            int f=0;
            int b=L-1;
            String p = "";
            for(int j=0; j<L-1; j++){
                if(t.charAt(j)=='0'){
                    p=p+arr[f];
                    f++;
                }else{
                    p=p+arr[b];
                    b--;
                }
            }
            set.add(p);
        }
        System.out.println(set.size());
    }
}