There are n points on the plane. Any three of them span a triangle. Find the area of the largest such triangle and the area of the smallest one. If the three chosen points lie on a single line, the area of that triangle counts as 0.
The input holds several test cases. The first line of each test case has the number of points n (3≤n≤2000). Each of the next n lines has two integers x and y (−10000≤x,y≤10000), the coordinates of one point. No point appears twice inside one test case. The last line of the input holds a single 0 and is not a test case.
For each test case print one line with two numbers: first the area of the smallest triangle, then the area of the largest triangle, separated by a space. Print both with exactly one digit after the decimal point. All coordinates are integers, so every area is a multiple of 0.5 and one decimal digit is exact.