{??? ??????????? ????????????????????????????????3???????{?|??|??|??|????????? |????????? ? 2 ??????|????????{????|???????|??????|????????|?????????????????????????????????????? ????? ??? ??? ?? ???????????? ????? ?????? ????? {???|???|??????|????|???|???|????????|???? ????? ???? ?? ??? ???? ???? ??-on-??????????????????????? move.|??: ??? ????????