def diff(arr):
    res=[]
    for i in range(len(arr)-1):
        res.append(abs(ord(arr[i])-ord(arr[i+1])))
    return res

def funnyString(s):
    st=list(s)
    rev=st[::-1]
    res1=diff(st)
    res2=diff(rev)
    return 'Funny' if res1==res2 else 'Not Funny'

def funnyString(s):
    for i in range(1, len(s)//2+1):
        if abs(ord(s[i])-ord(s[i-1])) != abs(ord(s[-i])-ord(s[-i-1])):
            return 'Not Funny'
    return 'Funny'