Task: Program Execution
Input (English): b 823 d 2845 7999 6851 I 777 5271 Q R R P c 955 C 8227 7331 Z u 2075 Q E 8993 K A 7775 8137 j 5375 8083
Output (English): 2, 4, 5, 6, 8, 9, 15, 17, 18, 21, 24, 27, 28, 30, 31