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Group Anagrams

Given a list of lowercase words, group together all words that are anagrams of each other (the same multiset of letters). Return the groups in any order.

Constraints

1 ≤ strs.length ≤ 10^4
0 ≤ strs[i].length ≤ 100
Only lowercase English letters

Examples

in: strs = ["eat","tea","tan","ate","nat","bat"]

out: [["eat","tea","ate"],["tan","nat"],["bat"]]

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