Task: Program Execution
Input (English): C I 3985 A t q 3313 9597 7973 2195 4891 S r 1985 x R 9503 2765 2015 1657 913 1479 R 2455 g 8417 2765 1337 S
Output (English): 3, 7, 8, 9, 10, 11, 14, 17, 18, 19, 20, 21, 22, 24, 26, 27, 28