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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.
i have solved this task, but i have no solved mark near task's name in tasks list
i beleive that one of tests on submit is wrong and was not fixed in java
validation on submit: first test case is wrong
validation on submit is wrong