Task: Program Execution
Input (English): D, 9255, 5229, 6581, 2105, g, 133, 5615, 3239, V, 847, X, 4175, Q, U, c, 4919, 9505, j, 419, 9591, E, Q, V
Output (English): 2, 3, 4, 5, 7, 8, 9, 11, 13, 17, 18, 20, 21