Contest: Task: Related: TaskA TaskC

Score : $200$ points

You are given integers $A$ and $B$, in base $K$.

Print $A \times B$ in decimal.

For base-$K$ representation, see Wikipedia's article on Positional notation.

- $2 \leq K \leq 10$
- $1 \leq A,B \leq 10^5$
- $A$ and $B$ are in base-$K$ representation.

Input is given from Standard Input in the following format:

$K$ $A$ $B$

Print the answer.

2 1011 10100

220

`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 $220$.

7 123 456

15642

`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 $15642$.