#! /usr/bin/env python3
import sys

if len(sys.argv)<2:
    print('usage: piglatin [text] -translate text to piglatin')
    sys.exit()

message = sys.argv[1]
def translateToPigLatin(message):
    vowels=('a', 'e', 'i', 'o', 'u', 'y')

    piglatin=[] #list of the words
    for word in message.split():
        #seperate the non-letters at the start of the word
        prefixNonLetters = ''
        while len(word) > 0 and not word[0].isalpha():
            prefixNonLetters += word[0]
            word = word[1:]

        if len (word) == 0:
            piglatin.append(prefixNonLetters)
            continue

        suffixNonLetters = ''
        while len(word)>0 and not word[-1].isalpha():
            suffixNonLetters = word[-1]+suffixNonLetters
            word = word[:-1]

        #remember if word was in uppercase or title case.
        wasUpper = word.isupper()
        wasTitle = word.istitle()

        #make word lowercase for translation.
        word = word.lower()

        #seperate the consanants at the end of the word.
        prefixConsonants = ''
        while len(word) > 0 and not word[0] in vowels:
            prefixConsonants += word[0]
            word = word[1:]

        #add pig latin ending

        if prefixConsonants == '':
            word += 'yay'
        else:
            word += prefixConsonants+'ay'

        #set the word back to upercase or titlecase.
        if wasUpper:
            word=word.upper()
        if wasTitle:
            word = word.title()

        #add non letters back.
        piglatin.append(prefixNonLetters + word + suffixNonLetters)

    #join all the words back into a string.
    return' '.join(piglatin)
print(translateToPigLatin(message)