Task: Program Execution
Input (English): 1, 4, ['B', '9037', 'O', '9103', '9453', 'h', '4583', '1291', 'x', 'V', '5667', '3079', 'Y', '8799', 'L', 'x', 'S', '2283', '4227', '1487', '8097', 'J', 'x', '7289']
Output (English): B, 9037, O, 9103