Sunwarul

/**
* @author : "Sunwarul Islam"
* To make an javascript problem solving environent, follow these following steps:  
* Run these commands from your terminal "mkdir programmingenv",  "cd programmingenv", "touch main.js input.txt output.txt" 
* Then, write this code snippet into the main.js and run this command to execute: "node main.js < input.txt > output.txt"
* Don't forget to insert your standard input into input.txt file, if you have any. and your output will go to ouptut.txt file.
* Full process as a video tutorial: https://www.youtube.com/watch?v=feDyXKQkSj0&t=1084s
*/