Task: Program Execution
Input (English): 1, ['6243', '7777', 'O', '2279', 'I', '7531', 'u', 'n', 'b', '8099', '2819', 'S', '9759', 'j', 'y', 'D', 'B', 'x', '4099', 'Z', 'K', 'a', 'E', '7033', '7917', 'x', '2909', 'q', '1895']
Output (English): 6243