s=input()
sset=set()


def  cal(x,ss):
    if x in sset:
        return
    if len(x) == len(s):
        sset.add(x)
        return
    cal(x+ss[0],ss[1:])
    cal(x+ss[-1],ss[:-1])
    
cal(s[0],s[1:])
cal(s[1],s[:-1])
print(len(sset))