INF = float("inf")

N = int(input())

A = []
for _ in range(N):
    x,y = map(int,input().split())
    A.append((x,y))
    
ans = INF
for cx in range(1,301):
    for cy in range(1,301):
        tmp = 0
        for nx,ny in A:
            tmp += abs(nx-cx) + abs(ny-cy)
        ans = min(ans, tmp)
        
print(ans)