对于所有的 $7 \le n$

cout << "YES\n";
cout << "1 + 2 = 3\n";
cout << "3 - 3 = 0\n";
cout << "4 * 6 = 24\n";
cout << "0 * 5 = 0\n";
for(int i = 7;i <= n;++ i)
	cout << "0 * " << i << " = 0\n";
cout << "0 + 24 = 24\n";