Task: Program Execution
Input (English): 18, 19, ['4895', '7063', 'Z', '1927', 'J', '6047', '6703', '6175', '2465', 'Y', 'J', '1857', '4563', '8889', '6683', 'B', '3987', 't', '8129', '435', 'R', '7105', '3267', 'z', 'F']
Output (English): t8129