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