Task: Program Execution
Input (English): 17, 20, ['8739', '4415', '4483', 'G', '4199', 'Q', '5829', '7857', 'a', '7715', '7587', '2317', 'F', '1529', '2417', '8007', 'J', '1183', '4239', 'G', '9697', '269', '5757']
Output (English): J, 1183, 4239, G