Task: Program Execution
Input (English): 6989 469 5865 9403 S a 7623 u u 7973 t 4665 1833 3061 3985 933 3917 N F 5987 v R 9555 l J 3453 k J E 1901 z U k 9395 8331 9093 K 6915 P
Output (English): 5, 6, 8, 9, 11, 18, 19, 21, 22, 24, 25, 27, 28, 29, 31, 32, 33, 37, 39