N = int(input())
X = []
Y = []
for _ in range(N):
    x, y = map(int, input().split())
    X.append(x)
    Y.append(y)

X.sort()
Y.sort()

x_median = X[N // 2]
y_median = Y[N // 2]

S = 0
for i in range(N):
    S += abs(X[i] - x_median) + abs(Y[i] - y_median)

print(S)