//C Program to Demonstrate
//a Hollow Star Pyramid
#include <stdio.h>

int main() 
{
    int i,space,n=5,j=0;

    //first for loop is used to
    //iterate number of rows
    for(i=0;i<n-1;i++){

        //second for loop is used to print spaces
        for(space=1;space<n-i;space++){
            printf(" ");
        }
        //third for loop is used
        //to print the required
        //pattern
        for(j=0;j<=2*i;j++){
            if(j==0||j==2*i)
                printf("*");
            else
                printf(" ");
        }
        //print the new line after every row
        printf("\n");
    }
    //used to print last row
    for(i=0;i<2*n-1;i++){
        printf("*");
    }
    return 0;
}