Dart chart

Example

 
 
+3
 
 
 
 
.3
 
.4
 
 
 
 
+17
 
 

Solution

 
 
+3
 
 
 
5
8
 
.3
 
.4
 
15
32
 
 
 
+17
 
 
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Dart chart
Dart chart

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