Repeated Character
Basic Accuracy: 49.78% Submissions: 16403 Points: 1

Given a string - "str", find the repeated character present first in the string.

Example : 
Input  :  geeksforgeeks
Output :  g
          (mind that it will be g, not e.)


Input : 
The first line of input contains an integer T denoting the Test cases. Then T test cases follow. 
Second line contains the string - "str"

Output : 
repeated character present first in the string, if present
otherwise print "-1"


Input : 
3
hello
fg
geeksforgeeks

Output : 
l
-1
g

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