#include<iostream>
using namespace std;
int main(){
int a,b,c;
cin>>a;
b=a-2;
c=(a-1)/2;
for(int i=1;i<=c;i++){
cout<<"|";
for(int t=1;t<=b;t++){
cout<<"a";
}
cout<<"|"<<endl;
}
cout<<"|";
for(int u=1;u<=b;u++){
cout<<"-";
}
cout<<"|"<<endl;
for(int i=1;i<=c;i++){
cout<<"|";
for(int t=1;t<=b;t++){
cout<<"a";
}
cout<<"|"<<endl;
}
return 0;
}
