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+19 into 18 best min fragment found: 6
+ Cut up 19 sticks of length 18 like this:
+ 3 x (9 + 9)
+ 6 x (8 + 10)
+ 6 x (7 + 11)
+ 4 x (6 + 6 + 6)
+ Reassemble as 18 sticks of length 19 like this:
+ 6 x (9 + 10)
+ 6 x (8 + 11)
+ 6 x (6 + 6 + 7)