Task: Program Execution
Input (English): U 7861 N q 2719 4571 O x O 551 1767 S c 2627 I b 6131 F 7019 r 3943 N 5881 q 2841 9907 d c h J 8255
Output (English): 2, 5, 6, 10, 11, 14, 17, 19, 21, 23, 25, 26, 31