#include <stdio.h>
#include <stdlib.h>
#include <math.h>

#define COORD(buffer, x, y, line) buffer[y*line+x]
typedef enum {
        DIRECTION_DEFAULT = 1,
        DIRECTION_REVERSE = -1
} DIRECTION_T;

void drawTriangle(char *buffer, int bufferLine, int x, int y, int height, DIRECTION_T direction, char ch) {
        int i, j, k;
        for (i=y; i != y + (direction * height); i += direction) {
                j = abs(i - y);
                for (k = x - j; k <= x + j; k++) {
                        COORD(buffer, k, i, bufferLine) = ch;
                }
        }
}

void drawRecusiveEmptyTriangle(char *buffer, int bufferLine, int x, int y, int height) {

        drawTriangle(buffer, bufferLine, x, y + height/2+height/2-1, height/2, DIRECTION_REVERSE, ' ');

        if (height / 2 == 1)
                return;
        drawRecusiveEmptyTriangle(buffer, bufferLine, x, y, height/2);
        drawRecusiveEmptyTriangle(buffer, bufferLine, x - height/2, y + height/2, height/2);
        drawRecusiveEmptyTriangle(buffer, bufferLine, x + height/2, y + height/2, height/2);

}

void printBuffer(char *buffer, int height, int width) {
        int i, j;
        for (i = 0; i<height; i++) {
                for (j = 0; j<width; j++) {
                        putchar(COORD(buffer, j, i, width));
                }
                putchar('\n');
        }
}

int main() {
        int line;
        int width;
        scanf("%d", &line);
        width = line * 2 -1;
        char *buffer = (char *)malloc(sizeof(char) * line * width);
        memset(buffer, ' ', sizeof(char) * line * width);

        drawTriangle(buffer, width, width/2, 0, line, DIRECTION_DEFAULT, '*');
        drawRecusiveEmptyTriangle(buffer, width, width/2, 0, line);

        printBuffer(buffer, line, width);
        return 0;
}