Task: Program Execution
Input (English): 1, 2, ['W', '4963', '3295', '4703', 'Q', '2493', 'p', '1995', 'U', '5221', 'P', 'V', 'x', 'c', 'X', 'o', 'z', 'o', '6135', '49', '6339', '967', '549', 'J', 'x']
Output (English): 4963