#include <stdio.h>
int main()
{
int n,i,j;
int m=1;
scanf("%d",&n);
int f=n/2;
while(f>=0&&m<=n){
for(j=f;j>0;j--){
printf(" ");
}
for(i=m;i>0;i--){
printf("* ");
}
for(j=f;j>0;j--){
printf(" ");
}
f--;
m=m+2;
printf("\n");
}
m=n-2;
f=1;
while(f<=n/2&&m>=1){
for(j=1;j<=f;j++){
printf(" ");
}
for(i=m;i>0;i--){
printf("* ");
}
for(j=1;j<=f;j++){
printf(" ");
}
f++;
m=m-2;
printf("\n");
}
}