d
Почитай для расширения кругозора https://www.google.com/url?sa=t&source=web&rct=j&url=https://web.math.princeton.edu/~nelson/books/rept/rept-rus.pdf&ved=2ahUKEwifmOKW5c3wAhUoTRUIHWu4CtUQFjAAegQIAxAC&usg=AOvVaw3ScQpW4Z8QPvWcjjVXulCc
Size: a a a
d
d
IP
IP
IP
AN
IP
AN
IP
AN
IP
IP
d
AD
AD
AD
d
AD
AD