0 _   __ __ __ __ __ __ __ ___ 1
   \/ 
1 _/\    __ __ __ __ __ __ ___ 2
      \/ 
2 ___ /\    __ __ __ __ __ ___ 3
         \/ 
3 ___ __ /\    __ __ __ __ ___ 4
            \/ 
4 ___ __ __ /\    __ __ __ ___ 5
               \/ 
5 ___ __ __ __ /\    __ __ ___ 6
                  \/ 
6 ___ __ __ __ __ /\    __ ___ 7
                     \/ 
7 ___ __ __ __ __ __ /\    ___ 8
                        \/ 
8 ___ __ __ __ __ __ __ /\   _ 9
                           \/
9 ___ __ __ __ __ __ __ __ /\_ 0