/*************************************************
 * C Program to print full hollow pyramid using * 
*************************************************/

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

int main() 
{
    int n;

    printf("Enter number of lines: \n");
    scanf("%d", &n);

    printf("\n");

    // loop for line number of lines
    for(int i = 1; i <= n; i++)
    {   
        // loop to print leading spaces in each line
        for(int space = 0; space <= n - i; space++)
        {
            printf("   ");
        }

        // loop to print *
        for(int j = 1; j <= i * 2 - 1; j++)
        {

            if (j == 1 || (j == i * 2 - 1) || i == n )
            {
                printf(" * ");
            }
            else
            {
                printf("   ");            
            }            
        }               

        printf("\n");
    }

    return 0;
}