import statistics

n = int(input())

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

xm = statistics.median(X)
ym = statistics.median(Y)

ans = 0
for i in range(n):
    ans += abs(X[i] - xm) + abs(Y[i] - ym)

print(ans)