Task: Program Execution
Input (English): B U U 1785 Q y 2031 6869 5291 U X j e g Y 4671 2449 l x 8877 D W d e 7155 9697 T y s 4493 1971 6861 Y 5797 J 7953
Output (English): 4, 7, 8, 9, 16, 17, 20, 25, 26, 30, 31, 32, 34, 36