咖啡
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Description
有一个长度为6的小写字母组成的单词， 如果第3个字母和第4个字母相同，并且第5个字母和第6个字母相同，那么我们称之为 coffee类的单词。
Format
Input
单词
Output
Yes 或者 No
Samples
输入1
hippoo
输出1
Yes
输入2
sippuu
输出2
Yes
输入3
apples
输出3
No
初二上学期期中考试
- Status
- Done
- Rule
- IOI
- Problem
- 4
- Start at
- 2022-11-7 14:30
- End at
- 2022-11-7 16:00
- Duration
- 1.5 hour(s)
- Host
-
梁泽贤 (liangzexian)
- Partic.
- 108