When I was growing up in the U.S., convenience stores didn’t stay open all night. 7-Eleven, for example, got its name because it was open from 7 a.m. to 11 p.m. Then 7-Elevens started opening all night. You could go there any time and buy almost anything. These days, it’s difficult for convenience stores in Japan to find workers, so some stores have started to close late at night. Last Saturday, when I went to a convenience store at the edge of a city, I saw a sign on the door. It said that the store opens at 5 a.m., and closes at 12 midnight. Maybe this 7-Eleven should change its name. Instead of 7-Eleven, how about calling it 5-Twelve?   (120 words)