Task: Program Execution
Input (English): A 6747 H 4431 c S 8183 K K 1389 6033 3089 r 9173 7033 599 X m 2227 G 7215 7767 2275 G i o 6749 6199 f K o Z
Output (English): 2, 4, 7, 10, 11, 12, 14, 15, 16, 19, 21, 22, 23, 27, 28