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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
haha, just for fun. I haven't practiced lookup table a long time. If i's range was limited, lookup table is the one of fast solutions, like lookup the ticket price between 2 train stations.
O_o whut