#include <bits/stdc++.h>
using namespace std;

typedef long long   signed int LL;
typedef long long unsigned int LU;

#define incID(i, l, r) for(int i = (l)    ; i <  (r); i++)
#define incII(i, l, r) for(int i = (l)    ; i <= (r); i++)
#define decID(i, l, r) for(int i = (r) - 1; i >= (l); i--)
#define decII(i, l, r) for(int i = (r)    ; i >= (l); i--)
#define  inc(i, n) incID(i, 0, n)
#define inc1(i, n) incII(i, 1, n)
#define  dec(i, n) decID(i, 0, n)
#define dec1(i, n) decII(i, 1, n)

#define inII(v, l, r) ((l) <= (v) && (v) <= (r))
#define inID(v, l, r) ((l) <= (v) && (v) <  (r))

#define PB push_back
#define EB emplace_back
#define MP make_pair
#define FI first
#define SE second
#define PQ priority_queue

#define  ALL(v)  v.begin(),  v.end()
#define RALL(v) v.rbegin(), v.rend()
#define  FOR(it, v) for(auto it =  v.begin(); it !=  v.end(); ++it)
#define RFOR(it, v) for(auto it = v.rbegin(); it != v.rend(); ++it)

template<typename T> bool   setmin(T & a, T b) { if(b <  a) { a = b; return true; } else { return false; } }
template<typename T> bool   setmax(T & a, T b) { if(b >  a) { a = b; return true; } else { return false; } }
template<typename T> bool setmineq(T & a, T b) { if(b <= a) { a = b; return true; } else { return false; } }
template<typename T> bool setmaxeq(T & a, T b) { if(b >= a) { a = b; return true; } else { return false; } }
template<typename T> T gcd(T a, T b) { return (b == 0 ? a : gcd(b, a % b)); }
template<typename T> T lcm(T a, T b) { return a / gcd(a, b) * b; }

// ---- ----

LL fl(LL a, LL b) { assert(b > 0); return (a > 0 ? a / b : (a - b + 1) / b); }
LL ce(LL a, LL b) { assert(b > 0); return (a < 0 ? a / b : (a + b - 1) / b); }

LL n, a[1000], b[1000];

pair<bool, LL> f(LL v) {
	LL l = 1, r = 1e9; // x, [l, r]
	inc(i, n) {
	inc(j, n) {
		LL A = a[i] - a[j];
		LL B = b[i] - b[j];
		if(B == 0) { if(abs(A) > v) { return MP(false, 0); } else { continue; } }
		
		if(B < 0) { A *= -1; B *= -1; }
		setmax(l, ce(-v - A, B));
		setmin(r, fl(+v - A, B));
		if(r < l) { return MP(false, 0); }
	}
	}
	
	return MP(true, l);
}

int main() {
	cin >> n;
	inc(i, n) { cin >> a[i] >> b[i]; }
	
	LL L = -1, H = 2e9; // max - min, [L, H)
	while(H - L > 1) {
		LL M = (L + H) / 2;
		(f(M).FI ? H : L) = M;
	}
	
	cout << f(H).SE << endl;
	
	return 0;
}