Task: Program Execution
Input (English): 6, 9, ['G', 'c', 'N', 'u', 'Z', '571', '5637', '3563', '8199', '6535', 'K', '3437', '2433', '599', 'z', '9339', 'w', '8301', '1043']
Output (English): 571, 5637, 3563, 8199