Task: Program Execution
Input (English): 6, ['1641', '9857', 'D', '4669', 'B', '7155', '2855', '2857', '2141', 'r', '761', 'C', '5019', 'm', '663', '4599', 'e', '5019', '4141', '6581', '3841']
Output (English): 1641, 2855, 5019, 4141