Task: Program Execution
Input (English): 9, 18, ['9423', '9231', '3787', '7609', 'Y', '6459', 'V', 'a', '8997', 'l', 'r', 'b', 'u', 'K', '1891', 'm', 'b', '2389', 'O']
Output (English): 8997lrbuK1891mb2389