Task: Program Execution
Input (English): B, 185, D, P, 6429, 2667, 341, T, 1645, o, 8935, 3967, d, b, 8301, l, 6091, 2243, 6181, 4039, 3367, j
Output (English): 2, 5, 6, 7, 9, 11, 12, 15, 17, 18, 19, 20, 21