Help in finding this error

Question

https://code.sololearn.com/cv403NincbJ0/?ref=app

Can Someone pls help me in solving this error.
I want to run n loop 4n-1 times but it is executing more than that. It is working fine if I use Scanner class but not in this case.

Answer 1

You can check it in your pc , it's running fine without any compilation error.
thats the error I think, it's not able to take the input correctly.

Answer 2

I wanted to input 2 space separated integers.
Firstly, I had input it normally using in.readLine() , but was not accepting the space separated integers.
So, I googled to see how to input space separated integers in java using bufferedReader.
My point for this code was to accept 2 space separated integers using BufferedReader class.
Thanks for looking deeper into code inspite of so much errors