import java.util.*;

public class Main {
    static HashSet<String> set = new HashSet<>();
	public static void main (String[] args) {
		Scanner sc = new Scanner(System.in);
		char[] arr = sc.next().toCharArray();
		search(arr, "", 0, arr.length, true);
		search(arr, "", -1, arr.length - 1, false);
		System.out.println(set.size());
   }
   
   static void search(char[] arr, String str, int left, int right, boolean isLeft) {
       if (left == right) {
           set.add(str);
           return;
       }
       if (isLeft) {
           str += arr[left];
       } else {
           str += arr[right];
       }
       search(arr, str, left + 1, right, true);
       search(arr, str, left, right - 1, false);
   }
}