package com.company;

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int a = scanner.nextInt();
        int z = (int)Math.sqrt(a);
        while(true)
        {
            int z2 = z*z;
            if(z2 % a == 0)
            {
                System.out.println(z2 / a);
                return;
            }
            z++;
        }
    }
}