S=input()
D=[{}for i in range(len(S)+1)]
D[0][""]=S
#print(D)
for i in range(1,len(S)+1):
    for k,v in D[i-1].items():
        #D[i][v[0]+k]=v[1:]
        D[i][k+v[0]]=v[1:]
        #D[i][v[-1]+k]=v[:len(v)-1]
        D[i][k+v[-1]]=v[:len(v)-1]
print(len(D[-1]))