S=input()
se=set()
N=len(S)
for mask in range(0,1<<N):
    s=''
    j,_j=0,N-1
    for i in range(N):
        if mask>>i&1:s+=S[j];j+=1
        else:s+=S[_j];_j-=1
    se.add(s)
print(len(se))