07.


import java.util.Scanner;

public class demo {
    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);

        String input = scanner.nextLine();

        int max = Integer.parseInt(input);

        for (int i = 0; i < max; i++) {

            for (int j = 0; j < max; j++) {
                if (j+1 == max){
                    System.out.print(input);
                    break;
                }
                System.out.print(input + " ");
            }
            System.out.println();
        }

    }
}



08.

import java.awt.geom.Path2D;
import java.util.Scanner;

public class demo {
    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);

        int num = Integer.parseInt(scanner.nextLine());
        double n = Double.parseDouble(scanner.nextLine());

        long factoriel = factorialUsingForLoop(num);

        double number = factoriel/n;

        System.out.printf("%.2f",number);


    }
    public static long factorialUsingForLoop(int n) {
        long fact = 1;
        for (int i = 2; i <= n; i++) {
            fact = fact * i;
        }
        return fact;
    }
}




09.


import java.awt.geom.Path2D;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Scanner;
import java.util.stream.Collectors;

public class demo {
    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);

        while (true){

            String cmd = scanner.nextLine();

            if (cmd.equalsIgnoreCase("END")){
                break;
            }

            System.out.println(cmd.equalsIgnoreCase(new StringBuilder(cmd).reverse().toString()));
        }

    }
}