Joke code

class Main {
    
    
    public static void main(String[] args) {
        System.out.println(Main.square(4));
    }
    
    
    //I don't know what I did but it works
    //Please don't modify it
    private static int square(int n) {
        
        int k = 0;
        while(true) {
            if(k == n*n) {
                return k;
            }
            k++;
        }
    }
}