Task: Program Execution
Input (English): 8781 i F 1387 4995 3595 4147 Y 4443 w j W C 2661 3309 r u v o B m l 3697 2189 o q 7155 L 4125
Output (English): 2, 3, 8, 10, 11, 12, 13, 16, 17, 18, 19, 20, 21, 22, 25, 26, 28