Task: Program Execution
Input (English): 2, 7, ['x', '2233', 'U', '7443', 'r', '7293', 'O', '2989', '2481', 'T', 'x', '9615', '7159', 'L', '9587', '879', 'w', '9679']
Output (English): O, 7293, r, 7443, U, 2233