(s + 639 ) - ( 439+h ), если s = 607. h=403
(607+639)-(439+403)=1246-842=404
(607+639)-(439+403)=607-403+639-439=204+200=404
(s + 639 ) - ( 439+h ), если s = 607. h=403
(607+639)-(439+403)=1246-842=404
(607+639)-(439+403)=607-403+639-439=204+200=404