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پنج شنبه 08 بهمن 1383, 11:01 صبح
Wiping Words
In this problem, you are given a paragraph of text in terms of a sequence of lines. Each lines contains a number of words which are sequences of lowercase and uppercase letters and are separated by either blank characters or asterisks.
A word is wiped out if for each character in that word, there is no letter or asterisk character
in the same position in the next line, or the word appears in the last line of the input.
If such a case happens, all occurrences of that word in the text is converted to blanks independent of
the corresponding characters in the next line.
Note that the asterisks and black characters never disappear.
Also, note that the words are considered case-sensitive. Write a program to read a sequence
of lines described above and wipe out as many word as it can iteratively.

Input (filename: D.in)

The first line of the input contains a single integer t (1 <= t <= 20) which is the number of test cases
in the input. Each test case contains a sequence of lines containing characters A..Z, a..z, blank
and asterisk (*). After each test case, there is a line containing single hash character (#) which is
not a part of the lines you must consider in your algorithm.

Output (filename: D.out)
For each test case, write the input lines in the output with the wiped out words converted to
blanks. The whitespace at the end of each line is ignored when evaluating your output. Separate
outputs for consecutive test cases with lines containing a single hash character.

Sample Input

ACM is
in this world
you are in*side
the world

Sample Output


you *

پنج شنبه 08 بهمن 1383, 23:13 عصر
بابا بل Font کوچک بنویس بشه خوندش
رنگش رو هم عوض کن. :wink:

جمعه 09 بهمن 1383, 00:20 صبح
:گیج: :mad:
این سوال رو دومین باره که می پرسید . هم عنوان سوالتون درست نیست و هم خود سوالتون . و احتمالا مدیر ها قفلش می کنن .

جمعه 09 بهمن 1383, 17:53 عصر
احتمالا مدیر ها قفلش می کنن