from itertools import product
import sys


def main():
    sys.setrecursionlimit(1000000)
    input = lambda: sys.stdin.readline()[:-1]
    N = int(input())
    XY = [tuple(map(int, input().split())) for _ in [0] * N]

    ans = float("inf")
    for x, y in product(range(1, 301), repeat=2):
        d = 0
        for xi, yi in XY:
            d += abs(xi - x) + abs(yi - y)
        ans = min(ans, d)
    print(ans)


if not __debug__:
    f = open(sys.argv[1], "r")
    sys.stdin = f

main()