Task: Program Execution
Input (English): 4, 5, ['f', 'U', 'W', 'l', '6981', 'u', 'Y', '5367', '8229', 'r', 'O', 'N', 'K', '1063', '3731', '4411', '8129', '3599', '9085', 'j', '21']
Output (English): l, 8229, 1063, 9085