include<bits/stdc++.h>

using namespace std;

int main()
{
int n;
while(cin >> n)
{
for(int i = 0;i < n; ++i)
{
for(int j = 0; j < n; ++j)
{
if(i == n - 1 || j == 0 || i == j )
cout << "* ";
else
cout << " ";
}
cout << endl;
}
}
return 0;