#include <stdio.h>

int main(){

    int i,j,n;
    scanf("%d",&n);
    n=n+1;
    for (i=1;i<=(n);++i){
        for (j=1;j<=(2*n+1);++j){
            if (j<=(n+1-i) || j>=(n+1+i))
                printf(" ");
            else
                printf("*");

        }
        printf("\n");
    }
    for (i=n-1;i>=1;--i){
        for (j=(2*n+1);j>=1;--j){
            if (j<=(n+1-i) || j>=(n+1+i))
                printf(" ");
            else
                printf("*");

        }
        printf("\n");
    }
    return 0;
}