import sys
input = sys.stdin.readline
INF = 10 ** 18

N = int(input())
P = []
for _ in [0] * N:
    x, y = map(int, input().split())
    P.append((x + y, x - y))

max_x = max_y = -INF
min_x = min_y = INF
for x, y in P:
    if(max_x < x):
        max_x = x
    if(max_y < y):
        max_y = y
    if(min_x > x):
        min_x = x
    if(min_y > y):
        min_y = y

def func(mid):
    mid *= 2
    block = [[0] * 2 for _ in [0] * 2]
    for x, y in P:
        if((x < max_x - mid and x > min_x + mid) or (y < max_y - mid and y > min_y + mid)):
            return False
        if(x < max_x - mid and y < max_y - mid):
            block[0][0] = 1
        if(x > min_x + mid and y < max_y - mid):
            block[1][0] = 1
        if(x < max_x - mid and y > min_y + mid):
            block[0][1] = 1
        if(x > min_x + mid and y > min_y + mid):
            block[1][1] = 1
    if((block[0][0] | block[1][1]) == 0 or (block[0][1] | block[1][0]) == 0):
        return True
    return False

ok = 2 * 10 ** 9 + 1
ng = -1
while(abs(ok - ng) > 1):
    mid = (ok + ng) // 2
    if func(mid):
        ok = mid
    else:
        ng = mid
print(ok)