Task: Program Execution
Input (English): 6557 f 9319 w F B 9465 S U k A 7353 9139 141 B 665 3 2651 359 h X 3909 e 2607 9819 s w w o 407 A y p F 4051
Output (English): 2, 4, 5, 6, 8, 9, 10, 11, 15, 20, 21, 23, 26, 27, 28, 29, 31, 32, 33, 34