// yukicoder: No.52 よくある文字列の問題
// 2019.5.7 bal4u

#include <stdio.h>
#include <string.h>

#define gc() getchar()
int ins(char *s)
{
	char *p = s;
	do *s = gc();
	while (*s++ > ' ');
	*--s = 0;
	return s - p;
}

#define HASHSIZ 5003
long long hash[HASHSIZ+2], *hashend = hash+HASHSIZ;

int insert(char *s)
{
	long long i, *tp;

	i = 0; while (*s) i = (i<<5) + *s++;
	tp = hash + (int)(i % HASHSIZ);
	while (*tp) {
		if (*tp == i) return 0;
		if (++tp == hashend) tp = hash;
	}
	*tp = i;
	return 1;
}

char s[12]; int w;
char t[12];
int ans;

void rec(int l, int r, int sz)
{
	if (sz == w) {
		ans += insert(t);
		return;
	}
	t[sz] = s[l];
	rec(l+1, r, sz+1);
	t[sz] = s[r];
	rec(l, r-1, sz+1);
}

int main()
{
	w = ins(s);
	rec(0, w-1, 0);
	printf("%d\n", ans);
	return 0;
}