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