Task: Program Execution
Input (English): 1, 7, ['4863', '7589', 'O', '109', '9191', '9199', 'j', '4371', '1231', 'v', '2775', 'U', '1737', 'K', '2865', 'T', '4551', '5739', 'x', 'C', '3227', '4699', '3943', '2519', '7699', 'o', 't']
Output (English): 4863, 4371, 2865, 4699