Task: Program Execution
Input (English): 2, 18, ['p', '5247', 'P', '2023', 'b', '3101', 'x', '1251', 'p', 'C', 'M', 'u', 'U', '6735', 'Y', 'B', 'q', 'C', '479', 'r', 'o', 'B', 'W', '6665', 'p']
Output (English): CqBY6735UuMCp1251x3101b2023P5247