source_code: import java.util.Scanner;
  public class test5{
      public static void main(String[] args){
          Scanner in=new Scanner(System.in);
              long x=in.nextLong();
              if(x>=3){
                  if(x%2!=0)
                      System.out.println(x*(x-1)*(x-2));
                  else if(x%3==0)
                      System.out.println((x-3)*(x-1)*(x-2));
                  else 
                      System.out.println(x*(x-1)*(x-3));
              }
              else System.out.println(x);
      }
  }