A: 3 2 1
B: 
C: 

Entered> 8
Entered> 8 18
Entered> 8 18 18
Moved disk 1 from A to C.
A: 3 2
B: 
C: 1

Exiting<
Moved disk 2 from A to B.
A: 3
B: 2
C: 1

Entered> 8 18 20
Moved disk 1 from C to B.
A: 3
B: 2 1
C: 

Exiting<
Exiting<
Moved disk 3 from A to C.
A: 
B: 2 1
C: 3

Entered> 8 20
Entered> 8 20 18
Moved disk 1 from B to A.
A: 1
B: 2
C: 3

Exiting<
Moved disk 2 from B to C.
A: 1
B: 
C: 3 2

Entered> 8 20 20
Moved disk 1 from A to C.
A: 
B: 
C: 3 2 1

Exiting<
Exiting<
Exiting<