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