Task: Program Execution
Input (English): 16, 19, ['N', 'C', 'g', '2823', '2273', 'N', 'W', '5177', '7789', '3559', 'O', '3495', '2883', '2275', '2599', '3919', 'x', 'N', '2923', '6145', '7331', '1861', 'X', '6043', '4111', 'P']
Output (English): 3919, x, N, 2923