Task: Program Execution
Input (English): 4069, b, R, 4417, 8737, v, 7951, v, O, 6031, o, i, P, d, 2561, d, 2521, B, Y, 997, 4959, l, e, 9743
Output (English): 2, 3, 6, 8, 9, 11, 12, 13, 14, 16, 18, 19, 22, 23