#include <stdio.h>

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

    // check constrain
    if (n < 1 || n > 10) {
        printf("Invalid 
        input");
        return 0;
    }
    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");
    }
    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;
}