{???? a 3-level ?? ??????????????? ???? in the Fisher-???????????????????????? |?????1% ???????{??|??|???|??|?????|????{??|??????|????? 1 ???| |????? 1 ?|???? 1 ?|???? 1 ?|???? 1 ?|???? 1 ?|????????????? — ??????????????????????????????? |??? ??????? ??? ???? ???????{??|???|????|????????????????????????? ?? ?????” ???{???|????|????|????|???????