Task: Program Execution
Input (English): 4, 7, ['c', '2855', '2341', '7533', 'X', 'O', 'N', '2275', 'K', '8755', '35', 'n', 'o', '8621', '141', '7893', '5519', 'c', '6469', 'O', '2589', 'M', '3135']
Output (English): NOX3357