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Problem G
Leyniþjónusta

Languages en is
/problems/leynithjonusta/file/statement/en/img-0001.png
Image from xkcd.com

In a recent data leak, some of the things the CIA has been examining were revealed. One of the items that came to light was that they had a tool, which could find email addresses that have been obscured by adding spaces, in order to avoid spam. The Icelandic Intelligence Agency has requested that the Competitive Programming Association of Iceland makes contestants implement a similar tool.

Input

Input is a single line with one email address, which consists exclusively of lowercase letters in the English alphabet, spaces, full stops and exactly one @ symbol. The line will always start with a lowercase letter and end with a lowercase letter or a full stop.

Output

Output the email address, without any spaces, on a single line.

Scoring

Group

Points

Constraints

1

75

The number of symbols in the input is at most $1\, 000$

2

25

The number of symbols in the input is at most $10^6$

Sample Input 1 Sample Output 1
keppnis forritun @ g mail . com
keppnisforritun@gmail.com
Sample Input 2 Sample Output 2
n o @ s p a m . p l z
no@spam.plz

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