Reorganize String

Try to solve the Reorganize String problem.

Statement

Given a string, str, rearrange it so that any two adjacent characters are not the same. If such a reorganization of the characters is possible, output any possible valid arrangement. Otherwise, return an empty string.

Constraints:

  • 1≤1\leq str.length ≤500\leq500
  • Input string consists of lowercase English letters.

Examples

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