Task: Program Execution
Input (English): 9, 18, ['R', 'G', 'v', 'K', '9345', 'i', '8939', 'm', 'x', '7769', '5665', '793', '9293', '1059', 'W', '6841', '1569', 'A']
Output (English): A15696841W1059929379356657769x