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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.
Sorry, may be is my fault keyboard typing.
I can't see where you found this test case:
MaxRotate.maxRot(869219342)
I think default test case for java in case
is invalid.
for input
869219342
expected is
962193428
but the most of result of maxRot should be start with
6xxxxxxxx