Task: Program Execution
Input (English): 9, 18, ['583', 'O', 'C', '6917', '5559', '107', '5275', '1341', 'z', '5737', '8591', '1297', 'q', 'u', '4491', 'k', 'Q', 'C', 'u', 'Q', 'X', '1937']
Output (English): CQk1944uq792119587375z