Task: Program Execution
Input (English): 6, ['B', '1637', 'F', 'o', '497', 'k', '6971', '9447', 'W', 'g', 'r', 'c', 'p', 'g', '2075', '9357', 'z', '3807', 'K', 'M', '3723', 'J', 'N', '6653', '8267', 'n', '8671', 'c', 'U', 'x', 'm', '1957', '9827', '4017', 'N', '4951', 'C', '4969', '6157', '7715', '1213']
Output (English): B, 6971, p, K, 8267, m, C