Task: Program Execution
Input (English): 1, 12, ['b', '9009', '3751', 'y', '4971', '5123', 'K', '7259', 'P', 'F', '9609', '345', 'p', 'D', '9891', 'K', 'g']
Output (English): 5439069FP9527K32151794y15739009b