#include <stdio.h>
int main() {
    int n;
    scanf("%d", &n);
    if(nj<=0 || n>10 || n%2 ==0) {
        printf("Invalid Input");
        return 0;
    }
    for(int i=n;i>=;i-=2){
        for(int s=0;s<(n-i)/2;s++){
            printf(" ";)
        }
        for(in)
    }