Task: Program Execution
Input (English): 24, 25, ['P', '4723', '9373', 'u', 'F', '4243', 'k', '6245', 'x', '5775', 'o', '3323', '9531', 'i', '3861', 'O', '8647', 'b', '5649', '8961', 'y', 'm', 'X', '5421', 'd', '3099']
Output (English): 5421d