Task: Program Execution
Input (English): 6, 11, ['B', '6545', 'M', 'c', 'U', 'K', 'U', '8131', '4143', '1851', '7917', '2313', 'z', 'E', '7945', '5289', 'W']
Output (English): 7917, 1851, 4143, 8131, U, K