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ずんだの縦読み問題 php編 - Qiita
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ずんだの縦読み問題 Perl編
ずんだの縦読み問題 Ruby編
ずんだの縦読み問題 Java 12 Early-Access 版
実装
#!/bin/sh
tweet1="忙しくてついったいじれない"
tweet2="さみしい"
tweet3="つらい"
echo ${tweet1:0:1}${tweet2:0:1}${tweet3:0:1}
~/tmp ./zunda.sh
忙さつ
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