#!/usr/bin/ruby
# -*- coding: UTF-8 -*-

score = 70

result = case score
when 0..40
	"糟糕的分?jǐn)?shù)"
when 41..60
	"快要及格"
when 61..70
	"及格分?jǐn)?shù)"
when 71..100
   	"良好分?jǐn)?shù)"
else
	"錯誤的分?jǐn)?shù)"
end

puts result