54a5e82840292d9f99f21b8e6aa18c3f3296aa0f788c3692cbebde92de115df7
// https://szkopul.edu.pl/problemset/problem/jJX6UjJwqR2gbe7Ustcok3hG/site/?key=statement
// OIG XIV (1 etap)
#include <iostream>
int main() {
std::ios_base::sync_with_stdio(0);
std::cin.tie(0);
std::cout.tie(0);
int N;
std::cin >> N;
for (int i = 0; i < N; i++) {
std::cout << " @@@ @@@\n";
std::cout << "@ @ @ @\n";
std::cout << "@ @ @\n";
std::cout << "@ @\n";
std::cout << " @ @\n";
std::cout << " @ @\n";
std::cout << " @ @\n";
std::cout << " @ @\n";
std::cout << " @\n";
}
return 0;
}