Task: Program Execution
Input (English): 5, 21, ['7523', '9833', '539', 'Q', 'H', 'D', '6097', 'V', '3329', 'q', 'G', 'h', 'F', '2759', 'G', 'A', 'j', 'J', 'Q', '6217', '9641', 'm', 'w']
Output (English): 14697126QJjAG9572FhGq9233V7906DH