#include<stdio.h>
int main (){
    int n,i,j,s;
    scanf("%d",&n);
    for (i=1;i<=n;i++){
        for (s=1;s<=n-i;s++){
            printf(" ");
        }
    
    for(j=1;j<=2*i-1;j++);{
        printf("*");
    }
        printf("\n");
        
    for (i=n-1;i>=1;i++){
        for(s=1;s<=n-i;s++){
            printf(" ");
        }

        for (j=i;j<=2*i-1;j++){
            printf("*");
        }
        
       printf("\n");    
        
    }
    return 0;
    }