! = H! H! = ! ! = ! . = . H y. = y. . = p p p . . = . H y p. = y . , p. = y, . pp. = pp, ! y. = p. y p, y . = p p. y y. = y . y . = p, , … py . = y ! ? = p - p. yy p yy. = py py py. ? = , p. y . = p .