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

ans = 10 ** 18
for x in range(310):
    for y in range(310):
        s = 0
        for i in range(N):
            s += abs(xs[i] - x) + abs(ys[i] - y)
        ans = min(ans, s)
    
print(ans)