Task: Program Execution
Input (English): c a 4589 A 5513 R 1633 X 973 u 5065 I 4947 x d 3363 2089 7491 4835 5703 7519 H 9801 x I G
Output (English): 3, 5, 7, 9, 11, 13, 16, 17, 18, 19, 20, 21, 23