Task: Program Execution
Input (English): 1, 8, ['D', '8857', 'k', '9719', '1999', 'A', 'U', '1575', 'V', '3067', '6167', 'Y', '4245', '6971', '5767', '4427', '5687', '9005', '6051', '1749', 'u', '4543', '7159']
Output (English): D, V, 5687