Problems
Rectangles intersection
Rectangles intersection
Two rectangles are given by the integer coordinates of a pair of diagonal vertices in a rectangular coordinate system, and their sides are guaranteed to be parallel to the axes. Find the area of the common part of rectangles.
Input
Four pairs of integers (each is less than 106
by absolute value).
Output
Print the area of the common part of rectangles.
Input example #1
4 7 8 -3 2 4 9 1
Output example #1
12