Task: Program Execution
Input (English): c 3557 6977 U 3077 2469 4345 9039 E 6065 o r f M V F 5971 1919 247 4519 H v 6459 1337 943 H 9695 4529 1433 1975 47 W e k 3161 q 2711 3051 7151 y
Output (English): 2, 3, 5, 6, 7, 8, 10, 17, 18, 19, 20, 23, 24, 25, 27, 28, 29, 30, 31, 35, 37, 38, 39