Task: Program Execution
Input (English): 1, 16, ['B', '1413', '8497', '9959', 'L', '7243', '5907', '4145', '8487', 'u', 'U', 'H', '3423', '7389', '6747', 'H', 'U', 'D', 'E', 'N', 'h', 'U', 'U', '5035']
Output (English): H674773893423HUu8487414559077243L995984971413B