Task: Program Execution
Input (English): 18, 21, ['4595', 'm', '5835', 'm', 'b', 'J', '9405', 'B', '7237', 'J', 'B', '8175', '9205', 'W', '6285', 'D', 'b', 'Y', '3227', '4937', '7967', 'o', '5687', '1285', 'm', '1377']
Output (English): Y322749377967