n=int(input())
x=[]
y=[]
for i in range(n):
 a,b=map(int,input().split())
 x.append(a)
 y.append(b)
x.sort()
y.sort()
xmed=x[n//2]
ymed=y[n//2]
res=0
for i in range(n):
 res+=abs(x[i]-xmed)+abs(y[i]-ymed)
print(res)