Вот это стратегии... https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcR9_uWdBgNYtguzZOVYBfLb-z9Qkofewn0coBubJrutEg-5yL8zPL2ffVVrkCFKV0LSRTc&usqp=CAU