Operators and For Loop:Square Root (Integral)

import java.lang.*;
import java.util.Scanner;
public class Main {
	
	public static void main(String[] args) {
		Scanner s=new Scanner(System.in);
        int N=s.nextInt();
        double squareRoot=Math.sqrt(N);
        System.out.println((int)squareRoot);
        

	}
}