Task: Program Execution
Input (English): 9, 18, ['g', 'v', 'G', 'w', '1403', '1157', 's', '9343', 'K', 'Q', 'R', '2607', 'd', 'D', 'x', 'l', '1523', '4221']
Output (English): 42211523lxDd2607RQK