Task: Program Execution
Input (English): 2, 6, ['9673', '3961', '8497', 'Y', '3729', 'W', 'S', 'e', 's', 'L', 'a', 'W', '4509', '4655', 'S', '1889', '7711', '8227', 'U', '4357', '2151', '4599']
Output (English): 3961, e, 4655, 4357