Task: Program Execution
Input (English): 2, 18, ['t', '6679', '8403', 'o', 'o', '1803', '533', '2565', 'B', '4711', '9893', '3461', '7921', '9515', 'Y', '5667', '3331', 'W', '8327', 'Y']
Output (English): W33315667Y95157921346198934711B25655331803oo84036679