#include int main() { int n; std::cin >> n; for (int i = 0; i < n; ++i) { if (i == 0) { for (int j = 0; j < n; ++j) { std::cout << "* "; } std::cout << std::endl; } else if (i != n - 1) { for (int k = 0; k < 2 * i; ++k) { std::cout << " "; } for (int j = 0; j < n; ++j) { if (j == 0) { std::cout << "* "; } else if (j != n - 1) { std::cout << " "; } else { std::cout << "* " << std::endl; } } } else { for (int k = 0; k < 2 * i; ++k) { std::cout << " "; } for (int j = 0; j < n; ++j) { std::cout << "* "; } std::cout << std::endl; } } return 0; }