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(k):
	k *= 2
	block = [[0] * 2 for _ in [0] * 2]
	for x, y in P:
		if((x < max_x - k and x > min_x + k) or (y < max_y - k and y > min_y + k)):
			return False
		if(x < max_x - k and y < max_y - k):
			block[0][0] = 1
		if(x > min_x + k and y < max_y - k):
			block[1][0] = 1
		if(x < max_x - k and y > min_y + k):
			block[0][1] = 1
		if(x > min_x + k and y > min_y + k):
			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(ok - ng > 1):
	k = (ok + ng) // 2
	if(func(k)):
		ok = k
	else:
		ng = k
print(ok)