Task: Program Execution
Input (English): 9453, 1079, W, 7527, o, 7169, 7377, 5829, 3585, 8993, D, 4071, R, 7859, 2139, O, v, x, 5005, v, w, 321, e, 7699
Output (English): 3, 5, 11, 13, 16, 17, 18, 20, 21, 23