Task: Program Execution
Input (English): F R 4399 i 6249 6541 r 2307 3247 2353 y 9319 2075 q 5201 4439 91 7097 u 9043 641 t 5979 C j 5175 8607 997 8063 I K 3129 D 1967 f 4557 4511
Output (English): 3, 5, 6, 8, 9, 10, 12, 13, 15, 16, 17, 18, 20, 21, 23, 26, 27, 28, 29, 32, 34, 36, 37