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