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+13 into 10 best min fragment found: 7/2
+ Cut up 13 sticks of length 10 like this:
+ 2 x (9/2 + 11/2)
+ 3 x (4 + 6)
+ 8 x (7/2 + 13/2)
+ Reassemble as 10 sticks of length 13 like this:
+ 4 x (13/2 + 13/2)
+ 1 x (4 + 9/2 + 9/2)
+ 2 x (7/2 + 4 + 11/2)
+ 3 x (7/2 + 7/2 + 6)