Task: Program Execution
Input (English): A 831 3841 7375 9375 5565 A 6419 5909 1175 t W 6621 4249 6919 3725 9459 H F 4155 d 2335 7451 Y 1021 5507 5799 c
Output (English): 2, 3, 4, 5, 6, 8, 9, 10, 13, 14, 15, 16, 17, 20, 22, 23, 25, 26, 27