#include <stdio.h>

int main() {
    int n;
    scanf("%d", &n);

    // Check constraints
    if (n < 1 || n > 10) {
        printf("Invalid Input\n");
        return 0;
    }

    // Upper half
    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= n - i; j++) {
            printf(" ");
        }
        for (int j = 1; j <= i; j++) {
            printf("*");
        }
        printf("\n");
    }

    // Lower half
    for (int i = n - 1; i >= 1; i--) {
        for (int j = 1; j <= n - i; j++) {
            printf(" ");
        }
        for (int j = 1; j <= i; j++) {
            printf("*");
        }
        printf("\n");
    }

    return 0;
}


    // Check for invalid characters (anything not letter, digit, or space)
    for (int i = 0; i < len; i++) {
        if (!(isalnum(str[i]) || str[i] == ' ')) {
            printf("Invalid input\n");
            return 0;
        }
    }

    // Remove duplicates while keeping order
    int visited[256] = {0};  // track ASCII characters
    for (int i = 0; i < len; i++) {
        unsigned char c = str[i];
        if (!visited[c]) {
            printf("%c", c);
            visited[c] = 1;
        }
    }
    printf("\n");

    return 0;
}