【例2.1】Hello World

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说明

输出著名短句"hello world"。

输入格式

输出格式

输出"hello world"。

样例

hello world

六上一 课堂练习

Not Claimed
Status
Done
Problem
20
Open Since
2023-4-15 0:00
Deadline
2023-4-23 23:59
Extension
24 hour(s)