Task: Program Execution
Input (English): 4471, B, 8275, 9387, 463, 3489, L, 1353, 6673, 7011, F, 349, q, d, b, R, 7399, O, E, S, 5245, T
Output (English): 2, 7, 11, 13, 14, 15, 16, 18, 19, 20, 22