Task: Program Execution
Input (English): 1, 5, ['U', 'X', 'k', '1653', 'A', '9827', 'e', 'g', 'm', '9705', 'Q', 'S', '2979', '7307', '349', 'x', 'L', 'e']
Output (English): U, 9827, Q, x