An office manager must assign offices to six staff members. The available offices, numbered 1-6 consecutively, are arranged in a row, and me separated only by six foot high dividers. Therefore, voices, sounds, and cigarette smoke readily pass from each office to those on either side.

• Miss Braun's work requires her to speak on the telephone frequently throughout the day.
• Mr. White and Mr. Black often talk to one another in their work, and prefer to have adjacent offices.
• Miss Green, the senior employee, is entitled to Office 5, which has the largest window.
• Mr. Parker needs silence in the office(s) adjacent to his own.
• Mr. Allen, Mr. White, and Mr. Parker all smoke. Miss Green is allergic to tobacco smoke and must have nonsmokers in the office(s) adjacent to her own.
• Unless otherwise specified, all employees maintain silence while in their offices.

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