#include<stdio.h>

int main() {
    int n;
    scanf("%d", &n);
    
    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 <=1; 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;
    
}