#include<stdio.h>
int main(){
    int n,i,j;
    while(scanf("%d",&n)!=EOF){
        for(i=0;i<n;i++){
            for(j=0;j<n;j++){
                if(j==i||j==n-i-1)
                {
                    printf("*");
                }
                else
                    printf(" ");
            }
            printf("\n");
        }
    }
}