[tutorial:894A]↵
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[Solution](http://paste.ubuntu.com/25998218/)↵
By: Bingheng Jiang ([user:NOIRP,2017-11-19])↵
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PS: The characters in problem 894A is Diamond and Bort from [_Land of the Lustrous_](https://en.wikipedia.org/wiki/Land_of_the_Lustrous).↵
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[tutorial:894B]↵
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[Solution](http://paste.ubuntu.com/25998229/)↵
By: ZeRui Cheng ([user:Marco.L.Tsien,2017-11-19])↵
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[tutorial:894C]↵
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[Solution](http://paste.ubuntu.com/25998230/)↵
By: Bingheng Jiang ([user:NOIRP,2017-11-19])↵
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[tutorial:894D]↵
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[Solution](http://paste.ubuntu.com/25998247/)↵
By: Bingheng Jiang ([user:NOIRP,2017-11-19])↵
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[tutorial:894E]↵
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[Solution](http://paste.ubuntu.com/25998238/)↵
By: Yiming Feng ([user:whfym,2017-11-19])↵
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Hope you had fun in this contest and got high rating!↵
↵
See you next time!
↵
[Solution](http://paste.ubuntu.com/25998218/)↵
By: Bingheng Jiang ([user:NOIRP,2017-11-19])↵
↵
PS: The characters in problem 894A is Diamond and Bort from [_Land of the Lustrous_](https://en.wikipedia.org/wiki/Land_of_the_Lustrous).↵
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[tutorial:894B]↵
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[Solution](http://paste.ubuntu.com/25998229/)↵
By: ZeRui Cheng ([user:Marco.L.Tsien,2017-11-19])↵
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[tutorial:894C]↵
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[Solution](http://paste.ubuntu.com/25998230/)↵
By: Bingheng Jiang ([user:NOIRP,2017-11-19])↵
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[tutorial:894D]↵
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[Solution](http://paste.ubuntu.com/25998247/)↵
By: Bingheng Jiang ([user:NOIRP,2017-11-19])↵
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↵
[tutorial:894E]↵
↵
[Solution](http://paste.ubuntu.com/25998238/)↵
By: Yiming Feng ([user:whfym,2017-11-19])↵
↵
↵
Hope you had fun in this contest and got high rating!↵
↵
See you next time!