#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
// Yukicoder №52 よくある文字列の問題 ★★
// https://yukicoder.me/problems/no/52
// ***********************
// for debug
#define DEBUG
#define	YUKICODER
// -----------


#ifdef YUKICODER
#define gc(c)	do{c = getchar_unlocked();}while(0)
#define pc(c)	putchar_unlocked(c)
	extern char getchar_unlocked(void);
	extern void putchar_unlocked(char c);
#else
#define gc(c)	do{c = getchar();}while(0)
#define pc(c)	putchar(c)
#endif
void out(int n) { // 整数の表示（出力）
	int i;
	char b[30];

	if (!n) pc('0');
	else {
		if (n < 0) pc('-'), n = -n;
		i = 0; while (n) b[i++] = n % 10 + '0', n /= 10;
		while (i--) pc(b[i]);
	}
	pc('\n');
}

#define REP(a,b)	for(int a=0;a<(int)(b);++a)
#define REP1(a,b)	for(int a=1;a<=(int)(b);++a)
#define NOP do{}while(0)
#ifdef DEBUG
#define TRACE(...)	do{printf(__VA_ARGS__);fflush(stdout);}while(0)
#define TRACECR	do{putchar_unlocked('\n');fflush(stdout);}while(0)
#else
#define TRACE(...)	NOP
#define TRACECR	NOP
#endif

#define errmes(...)	do{fprintf(stderr,__VA_ARGS__);}while(0)
#define	mypc(d)	putchar_unlocked((int)(d))
#define PRINCR mypc('\n')
#define NOCR(strig)	do{char *p;p=strchr(strig,'\n');if(p)*p='\0';}while(0)

// for stdio
#define GETLINE(str)	do{char *p;fgets(str,sizeof(str),stdin);p=strchr(str,'\n');if(p)*p='\0';}while(0)
#define	GETINTS(a,b) {char s[34];int *ap=a;REP(i,b){GETWORD(s);*ap++=atoi(s);}}
#define SWAP(type,a,b)	do{type _c;_c=a;a=b;b=_c;}while(0)
#define MAX(a,b)	((a)>(b)?(a):(b))

#define Possible(a) 	   printf("%s",((a)?"Possible":"Impossible"))
#define possible(a) 	   printf("%s",((a)?"possible":"impossible"))
// The out-of-date function
#define	asctime(...)	asctime_s(...)
#define	ctime(...)		ctime_s(...)
#define	str_len(a)	mystr_len(a)
#define mystr_len(str)	mystr_len_lim(str,9999);
static char *GETWORD(char* str) {char c;char *cp;cp=&str[0];gc(c);while(c!=EOF){if((c==' ')||(c=='\n'))break;*cp++=c;gc(c);}*cp='\0';return &str[0];}
static int GETLINEINT(void) {char s[34];GETLINE(s);return atoi(s);}
static int GETWORDINT(void) {char s[34];GETWORD(s);return atoi(s);}
static long GETWORDLONG(void) {char s[34];GETWORD(s);return atol(s);}
static int maxi(int a,int b){if((a)>(b)){return a;}return b;}
static long maxl(long a,long b){if(a>b){return a;}return b;}
static int mystr_len_lim(char *str,int lim){int i=0;do{if(str[i]=='\0')break;i++;}while(i<lim);return i;}
static int cmpchar_asc(const void *a,const void *b){if(*(char *)a>*(char *)b){return 1;}if(*(char *)a==*(char *)b){return 0;}return -1;}
static int cmpchar_desc(const void *a,const void *b){if(*(char *)a<*(char *)b){return 1;}if(*(char *)a==*(char *)b){return 0;}return -1;}
static int cmpstr_desc(const void *a,const void *b){return -strcmp((char*)a,(char*)b);}
// *********************
typedef struct DEFINT2 {
	int	x;
	int	y;
} TINT2;

char	*many[1536];
int		manidx = 0;
char	*buff;
char	*lp;
// *********************
static int cmpstr_asc(const void *a,const void *b){
	char	*aa = *((char**)a);
	char	*bb = *((char**)b);
	while( *aa != '\0' && *bb != '\0' ) {
		if( *aa > *bb ) {
			return 1;
		} else if( *aa < *bb ) {
			return -1;
		}
		aa++;
		bb++;
	}
	if( *aa == '\0' ) {
		if( *bb == '\0' ) return 0;
		else return -1;
	} else {
		return 1;
	}
}
// *********************
void setstr(char	*str) {
	char	*bufp;
	char	*mp,*op;
	char	*mpc,*opc;
	int		leng;
	int		notend;
	unsigned int	ti =0;
	unsigned int	tic;

	leng = str_len(str);
	mp = &str[0];
	op = &str[leng-1];
	bufp = lp+1;
	do {
		*(--bufp) = '\0';
		tic = ti;
		mpc = mp; opc = op;
		notend = 0;
		REP(u,leng) {
			if( tic & 1 ) {
				// 前から取る
				*(--bufp) = *(mpc)++;
			} else {
				// 後ろから取る
				*(--bufp) = *(opc)--;
				notend = 1;
			}
			tic >>= 1;
		}
		many[ manidx++ ] = bufp;
		ti++;
	} while( notend );
	return;
}
// **********************
// *********************
int main( void ) {
	char	str[16];
	int		leng;
	int		cnt;

	GETLINE(str);
	leng = str_len( str );
	buff = (char*)malloc(11*(leng+1));
	lp = buff + 11*(leng+1) -1;
	if( buff == NULL ) return 14;

	setstr( str );
	qsort( many , manidx , sizeof( char*), cmpstr_asc );
	strcpy( str , many[0] ); cnt = 1;
	for(int i = 1; i < manidx ; i++ ) {
		if( strcmp( str, many[i] ) != 0 ) {
			cnt++;
			strcpy( str , many[i] );
		}
	}
	//REP(i,manidx) printf("%s,",many[i]);
	out( cnt );
}