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).
输入格式
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.