Task: Program Execution
Input (English): z 347 A 9651 c 9069 4347 7083 8631 I 5267 t e B M S Y 13 y N 2917 473 2465 v 4923 7509 1307 3063 f w s x i
Output (English): 2, 4, 6, 7, 8, 9, 11, 18, 21, 22, 23, 25, 26, 27, 28