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