#include <stdio.h>
#include <conio.h>

int main(void)
{
	int a,b,c;
	int d,e,f ;

a=1, c=1, d=0;
scanf("%d", &b);
e=b, f=1;

while (a<b)
{
c=1, d=0;
printf("\n");
   while (d<f)
   {
   printf("*");
   c++, d++;
   }
f++, a++;
}

a=0, c=1, d=0;

while (a<e)
{
c=1, d=0;
printf("\n");
   while (d<b)
   {
   printf("*");
   c++, d++;
   }
a++, b--;
}
_getch();

return 0;
}

#include <stdio.h>
#include<stdio.h>

int main()
{
	int a, b, c;
	scanf("%d",&c);

	for(a=1;a<2*c;a++){
		if(a<=c){
			for(b=1;b<=a;b++)
				printf("*");
			printf("\n");
		}
		else {
			for(b=2*c-a;b>=1;b--)
				printf("*");
			printf("\n");
		}

	}
	return 0;
}

#include <stdio.h>
int main(void)
{
	int n, a, b, c;
	a=1, b=0, c=0;
	scanf("%d", &n);
while (a<=n) {
        printf("\n");
   while(c<n) {
	printf(" ");
	c++;}
b=0;
   while(b<2*a-1){
	printf("*");
	b++;}
c=a;
a++;
}

getch();
return 0;
}

#include <stdio.h>

#include<stdio.h>

int main(){

	int a, b, n;

	scanf("%d",&n);

	for(a=1;a<=n;a++){
		for(b=n;b>a;b--)
			printf(" ");
		for(b=1;b<=2*a-1;b++)
			printf("*");
		printf("\n");
	}

	
	
	return 0;
}

3 (<- scanf��� ������)

  *
 ***
*****
 ***
  *

#include <stdio.h>

int main(void)
{
int n, a, b, c, d;
	a=1, b=0, c=0;
	scanf("%d", &n);
	
while (a<=n-1) {
printf("\n");
	
while(c<n) {
	printf(" ");
	c++;
	}
	b=0;
	while(b<2*a-1){
	printf("*");
	b++;
	}
c=a, a++;
}

a=1, b=0, c=0;
d=n;	
while (a<=n) {
printf("\n");
	while(c<a) {
	printf(" ");
	c++;
	}
	while(b<2*d-1){
	printf("*");
	b++;
}
c=0, d--, a++, b=0;
}

getch();
return 0;
}

#include<stdio.h>

int main(){

	int a, b, n;

	scanf("%d",&n);

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

			for(b=1;b<=a-n;b++)
				printf(" ");
			for(b=1;b<=4*n-2*a-1;b++)
				printf("*");
			printf("\n");
		}
	}
	
	
	return 0;
}