#include<iostream>
using namespace std;
int main(){
	int a;
	cin>>a;
	for(int i=1;i<=a;i++){
		cout<<"|";
		for(int j=1;j<=a;j++){
			if(i==a/2+1){
				cout<<"-";
			}
			else{
				cout<<"a";
			}
		}
		cout<<"|";
		cout<<endl;
	}
	return 0;
}