#include<stdio.h>

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

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