Task: Program Execution
Input (English): W, 8943, z, 3341, 9895, D, 5483, O, 6297, 9189, I, w, 8757, Q, a, b, Z, 8241, m, 7263, 2979
Output (English): 2, 4, 5, 7, 9, 10, 13, 18, 20, 21