module B3 (myFringe) where
import C1 (Tree(Leaf, Branch))
myFringe :: (Tree a) -> [a]
 
myFringe (Leaf x) = [x]
myFringe (Branch left right) = myFringe right
 
sumSquares ((x : xs)) = (x ^ 2) + (sumSquares xs)
sumSquares [] = 0
 