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


public class Main_yukicoder52 {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        char[] s = sc.next().toCharArray();
        int n = s.length;

        Set<String> hs = new HashSet<String>();
        for (int i = 0; i < 0x1 << n; i++) {
        	int st = 0;
        	int en = n - 1;
        	StringBuilder tmp = new StringBuilder();
        	for (int j = 0; j < n; j++) {
        		if ((i & 0x1 << j) == 0) {
        			tmp.append(s[st]);
        			st++;
        		} else {
        			tmp.append(s[en]);
        			en--;
        		}
        	}
        	
        	hs.add(tmp.toString());
        }
        
        System.out.println(hs.size());

        sc.close();
    }
}