Task: Program Execution
Input (English): 13, 18, ['8115', 't', 'q', '2719', '7731', '5779', 'B', '6817', '2479', '4035', '8053', '2075', '3839', 'Y', 'W', 'd', 'C', '425', 'W', 'x']
Output (English): 4264