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