n = int(input())
xs = []
ys = []
for _ in range(n):
    x, y = map(int, input().split())
    xs.append(x)
    ys.append(y)

xs.sort()
ys.sort()

median_x = xs[n // 2]
median_y = ys[n // 2]

total = 0
for x in xs:
    total += abs(x - median_x)
for y in ys:
    total += abs(y - median_y)

print(total)