Task: Program Execution
Input (English): 7, 18, ['u', 'y', '3487', 'W', '7609', '4319', '1719', '105', '7881', '2789', '3581', 'y', '7171', 'T', '5773', 'Q', 'd', '8851', '9245', '4479']
Output (English): 8851dQ5773T7171y3581278978811051719