id: 198 yr ( 11, (9, 0, 2, 0)) (( 8.2, 8.2 ), ( 6.0, 2.5 ))
 +13                    |           +11 
                     |            
                     |         2021  
                     |        2016   
 +    +    +    +    +    +  2015 +  
                     |    2014 1220172018     
                     |            
                     |            
                     |20132019         
 +    +    +    +    +    +    +  
                     |            
                     |            
                     |            
                     |            
-+----+----+----+----+----+----+--
                     |            
                     |            
               2020     |            
                     |            
 +    +    +    +    +    +    +  
                     |            
                     |            
                     |            
                     |            
 +    +    +    +    +    +    +  
                     |            
                     |            
                     |            
                     |            
 +2011   +    +    +    +    +    +  
                     |            
 -17                    |           -20