Task: Program Execution
Input (English): 13, 27, ['6447', '8677', 'z', '7975', 'x', '1515', 'x', '1957', 'a', 'X', '5437', '7601', 'T', 'U', 'a', 'W', 'r', 'd', 'r', '3491', 'f', 'g', 'd', 'X', 'H', 'm', '9963']
Output (English): 13454