s = input()

s_len = len(s)
result_set = set()

for i in range(2 ** s_len):
    tmp = ""
    left = 0
    right = s_len - 1
    for j in range(s_len):
        if i & (2 ** j):
            tmp += s[right]
            right -= 1
        else:
            tmp += s[left]
            left += 1
    result_set.add(tmp)
print(len(result_set))