Task: Program Execution
Input (English): 4739 4893 u F 5425 2415 A 6121 1631 2027 e 7239 e 7911 S t 8423 6431 O Q V c 5637 K v k X 7677 2895 5691 w 3411 l X O 3731 f 7361 k
Output (English): 3, 4, 7, 11, 13, 15, 16, 19, 20, 21, 22, 24, 25, 26, 27, 31, 33, 34, 35, 37, 39