Tiers: 5
Stacks: 9
Containers: 22
Stack 0: 18   
Stack 1: 8    2    16   1    10   
Stack 2: 3    20   12   21   
Stack 3: 11   9    4    
Stack 4: 0    
Stack 5: 17   19   
Stack 6: 6    
Stack 7: 13   15   7    
Stack 8: 5    14