Task: Program Execution
Input (English): 1, 14, ['c', '7187', 'l', '5637', '1917', 'Q', '7621', '4561', 'g', '3547', 'X', 'x', '2909', '747', '6579', '2993', '429', 'C', 'T', 'L', '9849']
Output (English): 7479092xX7453g16541267Q71917365l7817c