Task: Program Execution
Input (English): 15, 17, ['6311', '8281', '7325', '6875', '2351', '6263', '9635', 'R', 'X', 'q', '7513', '6607', 'q', '3017', '3509', 'D', '4905', '955', 'X', '4439', '1059', '1017', 'i', 'T', 'C']
Output (English): 3509D4905