source_code: 
  
  import java.util.Scanner;
  
  public class Main {
  
      public static void main(String[] args) {
          Scanner in = new Scanner(System.in);
          long n = in.nextLong();
          if (n == 1 || n == 2) {
              System.out.println(n);
          } else if (n % 2 == 0) {
              if (n % 3 == 0)
                  System.out.println((n - 1) * (n - 2) * (n - 3));
              else
                  System.out.println(n * (n - 1) * (n - 3));
          } else {
              System.out.println(n * (n - 1) * (n - 2));
          }
      }
  
  }
  