Task: Program Execution
Input (English): 7, 21, ['D', '4567', 'P', '1629', '5717', 'L', '3493', 'g', '5449', 'P', 'Q', '3391', 'C', '5249', '4575', '4519', 'b', '6749', '9551', '7327', '8281']
Output (English): 8281732795516749b451945755249C3391QP5449g3493