Task: Program Execution
Input (English): u 5947 A 69 3981 z h B 321 w 2703 1999 R 1021 c W 5121 9785 i z a 7309 O 1077 229 u 5783 R
Output (English): 2, 4, 5, 9, 11, 12, 14, 17, 18, 22, 24, 25, 27