You are given integers $A$ and $B$, in base $K$. Print $A \times B$ in decimal. #### Notes For base-$K$ representation, see [Wikipedia's article on Positional notation](https://en.wikipedia.org/wiki/Positional_notation).

Input is given from Standard Input in the following format: >$K$\ >$A$ $B$ #### Constraints - $2 \leq K \leq 10$ - $1 \leq A,B \leq 10^5$ - $A$ and $B$ are in base-$K$ representation.

Print the answer.

***For Sample #1:*** `1011` in base $2$ corresponds to $11$ in base $10$. `10100` in base $2$ corresponds to $20$ in base $10$. We have $11 \times 20 = 220$, so print $220$. ***For Sample #2:*** `123` in base $7$ corresponds to $66$ in base $10$. `456` in base $7$ corresponds to $237$ in base $10$. We have $66 \times 237 = 15642$, so print $15642$.

AtCoder [ABC220B]