Task: Program Execution
Input (English): 1619, d, 2971, 8531, v, 1453, o, a, 5987, O, x, E, E, 7663, 5803, 7433, 7763, H, f, 1697, 4215, 4533, 6631, 3943
Output (English): 1, 3, 4, 6, 9, 14, 15, 16, 17, 20, 21, 22, 23, 24