Task: Program Execution
Input (English): 15, 21, ['b', 'g', '3473', 'd', 'q', 'J', 'N', '9317', '6001', 'c', 'V', 'W', 'U', 'm', '3347', '3871', 'v', 'j', '1523', 'B', 'A', '7309', 'M', '3183']
Output (English): 33473871vj1523BA