N = int(input())
XY = [list(map(int, input().split())) for _ in range(N)]
X = []
Y = []
for x,y in XY:
    X.append(x)
    Y.append(y)
X.sort()
Y.sort()
xh = X[N//2]
yh = Y[N//2]
S = 0
for x,y in XY:
    S+=abs(x-xh)+abs(y-yh)
print(S)