Task: Program Execution
Input (English): B 183 W H 1687 L T 8017 d 8387 e 3091 4339 G F a 9397 8395 3503 i 6993 6527 1279 8019 8281 C O 4727 U
Output (English): 2, 5, 8, 10, 12, 13, 17, 18, 19, 21, 22, 23, 24, 25, 28