Task: Program Execution
Input (English): 18, 18, ['6845', 'F', '453', '7549', 'Y', 'Q', 'P', '2941', '7175', 'X', '5195', 'V', 'f', 'g', '3963', '1125', 'U', '445', '3921', 'F', 'D', 'G', '3857', 'V', 'T', 'x']
Output (English): 544