Task: Program Execution
Input (English): 1, 3, ['7747', 'Z', '5885', '6861', 'W', 'R', 's', '9831', '7079', 'a', 'i', 'R', 'm', 'w', '4433', '1279', '9177', '8649', '1889', '9639', '3053', 'f', '3515']
Output (English): 5885Z7747