n = int(input())
x = []
y = []
for i in range(n):
	xx, yy = map(int, input().split())
	
	x.append(xx)
	y.append(yy)
x.sort()
y.sort()
xmid = x[n//2]
ymid = y[n//2]
ans = 0
for i in range(n):
	ans += abs(x[i]-xmid) + abs(y[i]-ymid)
print(ans)