Task: Program Execution
Input (English): 4, 9, ['B', 'c', 'V', 'U', 'W', 'v', '1275', 'a', 'v', '8917', 'u', '6641', '6977', '1617', '7665', 'g', 'n', '275', 'P', 'c', '3191', 'o']
Output (English): va5721vWU