import java.util.Scanner;

public class p06_RhombusOfStars {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

       /* int n = Integer.parseInt(scanner.nextLine());
        int spaceCount = n-1;
        int starsCount=0 ;

        for (int r = 0; r <n  ; r++) {
            for (int s = 0; s <spaceCount ; s++) {
                System.out.print(" ");
            }
            System.out.print("*");
            for (int stars = 0; stars < r ; stars ++) {
                System.out.print(" *");
                }
            spaceCount --;
            System.out.println();

        }
         spaceCount=1;
        starsCount = starsCount -1 ;
        for (int r = 0; r < n-1 ; r++) {
            for (int s = 0; s <  spaceCount ; s++) {
                System.out.print(" ");
            }
            for (int s= 0; s < starsCount ; s ++) {
                System.out.print(" *");
                System.out.println("*")

            }
            starsCount -=1;
            spaceCount++;

        }


    }
}*/
        int rhombusSideSize = Integer.parseInt(scanner.nextLine());
    String starSign = "* ";

        for (int i = 1; i <= rhombusSideSize; i++) {
                rhombusLineOutput(rhombusSideSize, i, starSign);
                }

                for (int i = rhombusSideSize - 1; i > 0 ; i--) {
                rhombusLineOutput(rhombusSideSize, i, starSign);
                }
                }

static void rhombusLineOutput(int rhombusSideSize, int signsCount, String fillSign){
        int spacesCount = rhombusSideSize - signsCount;
        String outputString = stringRepeater(" ", spacesCount);
        outputString += stringRepeater(fillSign, signsCount);
        System.out.println(outputString);
        }

static String stringRepeater (String stringToRepeat, int stringRepeatCount){
        String outputString = "";
        for (int i = 0; i < stringRepeatCount; i++) {
        outputString += stringToRepeat;
        }
        return outputString;
        }
        }