#include <stdio.h>

int main(){
    int n;
    scanf("%d",&n);
    
    if (n <= 0 || n>10 || n % 2 == 0){
        printf("Invalid Input");
        return 0;
    }
    
    int spaces = 0;
    int stars = n;
    
    while (stars >0){
        for(int s = 0; s < spaces; s++)
        printf(" ");
        for (int st =0; st < stars; st++)
        printf("*");
        
        printf("\");
        spaces++;
        stars -=2;
    }
    
    return 0;
}