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<?php echo strtr('Important: you are NOT allowed to use a built-in function that converts the string (or just one character) to lowercase (such as ToLower() in .NET, strtolower() in PHP , ...)! You\'re allowed to use all other built-in functions, however.', range('A', 'Z'), range('a', 'z'));
Output for git.master_jit, git.master, rfc.property-hooks
Fatal error: Uncaught TypeError: strtr(): Argument #3 ($to) must be of type ?string, array given in /in/aCEfK:2 Stack trace: #0 /in/aCEfK(2): strtr('Important: you ...', Array, Array) #1 {main} thrown in /in/aCEfK on line 2
Process exited with code 255.

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