#include <iostream>
using namespace std;
int main() {
// your code goes here
int n,j,i;
cin>>n;
for(i=1;i<=n;i++){
for(j=1;j<=n;j++){
if(j==1||j==n) cout<<"|";
else if(i==1||i==n||i==(n+1)/2) cout<<"-";
else cout<<"x";
}
cout<<"\n";
}
return 0;
}
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