N = int(input())
X,Y = [], []
for i in range(N):
    x,y = map(int, input().split())
    X.append(x)
    Y.append(y)
X.sort()
Y.sort()
focusX, focusY = X[N//2], Y[N//2]
res = 0
for i in range(N):
    res += abs(X[i] - focusX) + abs(Y[i] - focusY)
print(res)