int main(){
         int n,i,j,z;
         scanf("%d",&n);
                  for(i = 1;i <= n+1;i++){
                   for(j=1;j <= n-i+1;j++){
                            printf(" ");
                   }
                  
                   for(z = 1;z <= 2 * i-1;z++){
                            printf("*");
                   }
                   printf("\n");
         
         } 
         
                   
                  for(i = n;i >= 1;i--){
                   
                   for(j = 0;j < n-i+1;j++){
                            printf(" ");
                   }
                   
                   for(z=1;z <= 2 * i - 1;z++){
                            printf("*");
                   }
                   
                   printf("\n");
         }
 

         
        
         return n;
}
/**************************************************************
	Problem: 1071
	User: admin
	Language: C
	Result: Accepted
	Time:10 ms
	Memory:1144 kb
****************************************************************/