from sys import stdin
input = stdin.readline

INF = 1<<60

N = int(input())
HW = [list(map(int, input().split())) for _ in range(N)]

minH = INF
maxH = -INF
minW = INF
maxW = -INF
for h, w in HW:
    h, w = h+w, h-w
    minH = min(minH, h)
    maxH = max(maxH, h)
    minW = min(minW, w)
    maxW = max(maxW, w)

def func(a, b, c, d):
    ans = []
    for h, w in HW:
        h, w = h+w, h-w
        if not a <= h <= b or not c <= w <= d:
            ans.append((h, w))
    return ans

def func2(A):
    if not A:
        return -INF
    minH = INF
    maxH = -INF
    minW = INF
    maxW = -INF
    for h, w in A:
        minH = min(minH, h)
        maxH = max(maxH, h)
        minW = min(minW, w)
        maxW = max(maxW, w)
    return max((maxH-minH)/2, (maxW-minW)/2)

def solve(d):
    A = func(minH, minH+d*2, minW, minW+d*2)
    B = func(minH, minH+d*2, maxW-d*2, maxW)
    C = func(maxH-d*2, maxH, minW, minW+d*2)
    D = func(maxH-d*2, maxH, maxW-d*2, maxW)
    return min(func2(A), func2(B), func2(C), func2(D)) <= d

left = -1
right = 10**12
while left+1 < right:
    mid = (left+right)//2
    if not solve(mid/2):
        left = mid
    else:
        right = mid

print(right)