Hey guys I am trying to solve on problem in javascript and I am stuck at 
taking input from stdin. The question will provide an integer N (number of 
test cases) followed by N lines. I can't figure out how to take input in 
this particular way.

    3
    hello
    world
    bye

I have seen some solutions but those are not working in my case. I can't 
mimic the same behaviour. It should ask for the N and then run the loop N 
times that takes input from the user and returns the solution for the 
particular test case

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