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#include <iostream> using namespace std; int main() { int n; cin >> n; for (int row = 0; row < n; row++) { bool onFirstOrLastLine = (row == 0 || row == n - 1); cout << ((onFirstOrLastLine) ? "+ " : "| "); for (int col = 0; col < n - 2; col++) cout << "- "; cout << ((onFirstOrLastLine) ? "+" : "|") << endl; } }