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import java.util.Scanner;



public class Main {
    public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int bounce = sc.nextInt();
     System.out.println("The next number for the number " + bounce + " is " + (bounce + 1) + ".");
    System.out.println("The previous number for the number " + bounce + " is " + (bounce - 1) + ".");
    
}
   }