#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<=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<=i;j++){
        printf(" ");
        for(int j=1;j<=i;j++){
            printf("*");
        }
        printf("\n");
    }
    return 0;
}