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Points: 40 (partial)
Time limit: 1.0s
Memory limit: 64M

Authors:
Problem types
Allowed languages
Java 19, Java 8

題目說明

輸入一行英文句子,以空格分段

只輸出長度大於等於5的單字

// 不需要處理標點符號

輸入

一行英文句子

輸出

長度大於等於5的所有單字

若單字長度皆小於5,輸出None

sample input1

How are you

sample output1

None

sample input2

Welcome to object-oriented programming class B

sample output2

Welcome object-oriented programming class

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