Pick the Quadrant

Given a point, decide which quadrant it lies in. The quadrants are numbered 1 through 4 as in the picture below. "Quadrant n" in the picture means the n-th quadrant.

For example, point A at $(12, 5)$ has a positive x coordinate and a positive y coordinate, so it lies in quadrant 1. Point B has a negative x coordinate and a positive y coordinate, so it lies in quadrant 2.

Write a program that reads the coordinates of a point and reports its quadrant. Both coordinates are either positive or negative, and zero never appears.

The first line contains an integer $x$. ($-1000 \le x \le 1000$, $x \ne 0$)

The second line contains an integer $y$. ($-1000 \le y \le 1000$, $y \ne 0$)

Print the number of the quadrant that contains the point $(x, y)$. The value is one of 1, 2, 3, 4.