Task: Program Execution
Input (English): 4, ['867', '1279', '9401', '4677', '1539', '9065', 'w', '7703', 'x', 'i', 'm', 'K', '801', '5029', '629', '6559', 'c', 'k', 'r', '863', 'C', 'y']
Output (English): 867, 1279, 9401, 4677