import java.io.*;
import java.util.*;
class Main
{
  public static void main(String[] args)
  {
    Scanner sc=new Scanner(System.in);
    int x=sc.nextInt();
    if(x==0)
      System.out.println("1");
    else if(x==1)
      System.out.println("0");
    else
      System.out.println("-1");
  }
} import java.io.*; io.* java import java.util.*; util.* java class Main
{
  public static void main(String[] args)
  {
    Scanner sc=new Scanner(System.in);
    int x=sc.nextInt();
    if(x==0)
      System.out.println("1");
    else if(x==1)
      System.out.println("0");
    else
      System.out.println("-1");
  }
} Main public static void main(String[] args)
  {
    Scanner sc=new Scanner(System.in);
    int x=sc.nextInt();
    if(x==0)
      System.out.println("1");
    else if(x==1)
      System.out.println("0");
    else
      System.out.println("-1");
  } main {
    Scanner sc=new Scanner(System.in);
    int x=sc.nextInt();
    if(x==0)
      System.out.println("1");
    else if(x==1)
      System.out.println("0");
    else
      System.out.println("-1");
  } Scanner sc=new Scanner(System.in); sc new Scanner(System.in) int x=sc.nextInt(); x sc.nextInt() sc.nextInt sc if(x==0)
      System.out.println("1");
    else if(x==1)
      System.out.println("0");
    else
      System.out.println("-1"); x==0 x 0 System.out.println("1") System.out.println System.out System System.out "1" if(x==1)
      System.out.println("0");
    else
      System.out.println("-1"); x==1 x 1 System.out.println("0") System.out.println System.out System System.out "0" System.out.println("-1") System.out.println System.out System System.out "-1" String[] args args
import java.io.*;
import java.util.*;
class Main
{
  public static void main(String[] args)
  {
    Scanner sc=new Scanner(System.in);
    int x=sc.nextInt();
    if(x==0)
      System.out.println("1");
    else if(x==1)
      System.out.println("0");
    else
      System.out.println("-1");
  }
}