Task: Program Execution
Input (English): 297 2881 775 z U L y 9707 985 8405 k Z 8137 G 7007 I 2825 2439 8081 3567 4929 557 g H 1963 7979 j 3609 8683
Output (English): 1, 2, 3, 8, 9, 10, 13, 15, 17, 18, 19, 20, 21, 22, 25, 26, 28, 29