Task: Program Execution
Input (English): x C e a m 3187 4801 y 6979 V b a 2581 x 4231 l t 6917 N K B 4327 B A 8329 O 6435 683 W 5635 Q f 283 C 2889 H 9677 i
Output (English): 6, 7, 9, 13, 15, 18, 22, 25, 27, 28, 30, 33, 35, 37