#!/usr/bin/env python3
from string import ascii_lowercase

def abcdearian(s):
    return issorted_recursive([c for c in s.lower() if c in ascii_lowercase])

def issorted(L):
    return all(x <= y for x, y in zip(L, L[1:]))

def issorted_recursive(L):
    return L[0] <= L[1] and issorted_recursive(L[1:]) if len(L) > 1 else True

while True:
    s = input("String? ")
    if not s:
        break
    print("{} is {}abcdearian".format(s, "" if abcdearian(s) else "not "))