#include<stdio.h>
void main()
{
    int n;
    scanf("%d",&n);
    if(n <= 0 || n>10 || n%2 == 0){
        printf("Invalid input");
        return 0;
    }
    int spaces = 0;
    for(int stars = n;stars >=1;stars -= 2){
    for(int i = 0 ;i >= spaces;i++){
        for(int j = 0; j < i; j++){
            printf(" ");
        }
        for (int j = 0;j<stars;j++){
            printf("*");
        }
        if(stars > 1)
        printf("\n");
        spaces++;
        }
    getch();
    )