#よくある文字列の問題

def narabekae(t , s):
    if len(s) == 1:
        t += s
        if t not in slist:
            slist.append(t)
        return
    else:
        narabekae(t + s[0], s[1:])
        narabekae(t + s[-1], s[:-1])
    
    return

S = input()
slist = []

narabekae(S[0] , S[1:])
narabekae(S[-1] , S[:-1])

print(len(slist))