A common problem in mathematics is to determine which
quadrant a given point lies in. There are four quadrants,
numbered from $1$ to
$4$, as shown in the
diagram below:
For example, the point $A$, which is at coordinates
$(12, 5)$ lies in quadrant
$1$ since both its
$x$ and $y$ values are positive, and point
$B$ lies in quadrant 2
since its $x$ value is
negative and its $y$ value
is positive.
Your job is to take a point and determine the quadrant it is
in. You can assume that neither of the two coordinates will be
$0$.
Input
The first line of input contains the integer $x$ ($1000 \le x \le 1000; x \not= 0$).
The second line of input contains the integer $y$ ($1000 \le y \le 1000; y \not=
0$).
Output
Output the quadrant number ($1$, $2$, $3$ or $4$) for the point $(x, y)$.
Sample Input 1 
Sample Output 1 
10
6

1

Sample Input 2 
Sample Output 2 
9
13

4
