S = input()

a = [[0], [-1]]
for i in range(len(S)-2):
    f = [[0] + x for x in a]
    r = [[-1] + x for x in a]
    a = f + r

b = set()
for p in a:
    c = list(S)
    d = ""
    for i in p:
        d += c.pop(i)
    b.add(d)
        
print(len(b))