Name: Print first Occurence
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All Tracks Algorithms String Algorithms Basics of String Manipulation Problem

Print first Occurence

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Given a string containing only lower case letters ,print first occurrence of all the letters present in that order only.

Input :

Output :

Desired Output

Constraint :

string length <=200

SAMPLE INPUT

2
aasdvasvavda
sajhags

SAMPLE OUTPUT

asdv
sajhg

Time Limit: 1.0 sec(s) for each input file.

Memory Limit: 256 MB

Source Limit: 1024 KB

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