View Code of Problem 125

#include<iostream>
using namespace std;
 
int main() {
	int n;
	cin >> n;
	for (int i = 0; i < 2 * n + 3; ++i) {
		for (int j = 0; j < n + 2; ++j) {
			if (i == 0 || i == n + 1 || i == 2 * n + 2) {
				if (j == 0 || j == n + 1)
					cout << " ";
				else
					cout << "-";
			}
			else {
				if (j == 0 || j == n + 1)
					cout << "|";
				else
					cout << " ";
			}
		}
		cout << endl;
	}
 
	return 0;
}