Problem1868--Extra Krunch

1868: Extra Krunch

Time Limit: 1 Sec  Memory Limit: 30 MB
Submit: 1  Solved: 1
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Description

A krunched word has no vowels ("A", "E", "I", "O", and "U") and no repeated letters. Removing vowels and letters that appear twice or more from MISSISSIPPI yields MSP. In a krunched word, a letter appears only once, the first time it would appear in the unkrunched word. Vowels never appear.

Krunched phrases similarly have no vowels and no repeated letters. Consider this phrase:
        RAILROAD CROSSING

and its krunched version:
        RLD CSNG

Blanks are krunched differently. Blanks are removed so that a krunched phrase has no blanks on its beginning or end, never has two blanks in a row, and has no blanks before punctuation. Otherwise, blanks not removed. If we represent blanks by "_",
        MADAM_I_SAY_I_AM_ADAM__

krunches to:
        MD_SY

where the single remaining blank is shown by "_".

Write a program that reads a line of input (whose length ranges from 2 to 70 characters), and krunches it. Put the krunched word or phrase in the output file. The input line has only capital letters, blanks, and the standard punctuation marks: period, comma, and question mark.

Input

A single line to be krunched.

Output

A single krunched line that follows the rules above.

Sample Input Copy

NOW IS THE TIME FOR ALL GOOD MEN TO COME TO THE AID OF THEIR COUNTRY.

Sample Output Copy

NW S TH M FR L GD C Y.

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