* Carlo rolls $4$ and $4$ and moves to cell $3$, with tax value $12$. Since the $2$ dice values are equal he must throw again.
* Carlo rolls $3$ and $3$ and moves to cell $9$, with tax value $20$. He already moved $3$ times, so his turn ends, even if the $2$ dice values are equal.

In the {**second sample case**} the answer is $-6$. A possible sequence of rolls is the following:
 
* Carlo rolls $1$ and $2$ and moves to cell $3$, with tax value $-6$. Then his turn ends.
 
Note that going to the cell $2$ is not optimal because the only way to do so is by rolling $1$ and $1$, but that forces Carlo to move again.
 

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