Task: Program Execution
Input (English): x, o, a, 3165, O, W, 8333, 3161, W, 4395, 2319, 2135, 5979, Q, 9659, O, 6809, 9389, X, a, o, W, 5385, c
Output (English): 4, 7, 8, 10, 11, 12, 13, 15, 17, 18, 23