Untitled

#include <iostream>
using namespace std;

int main()
{
    int razmer;
    cin >> razmer;
    for (int i = 1; i <= razmer; i++) {
        for (int j = 1; j <= razmer; j++) {
            if (j % 2 == 0 and j % 5 != 0) {
                cout << '*';
            }
            if (j % 2 != 0 and j % 5 != 0) {
                cout << '-';
            }
            if (j % 5 == 0) {
                cout << '@';
            }
        }
    }
}