import itertools

def solve(N, XY):
  ans = 10 ** 9
  for xc, yc in itertools.product(range(-310, 310), repeat=2):
    s = sum(abs(xi - xc) + abs(yi - yc) for xi, yi in XY)
    ans = min(s, ans)
  return ans

N = int(input())
XY = [[int(x) for x in input().split()] for _ in range(N)]

print(solve(N, XY))