Problem: For a vector \vec{v} = (x, y), define |v| = √{x^2 + y^2}.

Allen had a bit too much to drink at the bar, which is at the origin. There are n vectors \vec{v_1}, \vec{v_2}, ⋅⋅⋅, \vec{v_n}. Allen will make n moves. As Allen's sense of direction is impaired, during the i-th move he will either move in the direction \vec{v_i} or -\vec{v_i}. In other words, if his position is currently p = (x, y), he will either move to p + \vec{v_i} or p - \vec{v_i}.

Allen doesn't want to wander too far from home (which happens to also be the bar). You need to help him figure out a sequence of moves (a sequence of signs for the vectors) such that his final position p satisfies |p| ≤ 1.5 ⋅ 10^6 so that he can stay safe.

Input

The first line contains a single integer n (1 ≤ n ≤ 10^5) — the number of moves.

Each of the following lines contains two space-separated integers x_i and y_i, meaning that \vec{v_i} = (x_i, y_i). We have that |v_i| ≤ 10^6 for all i.

Output

Output a single line containing n integers c_1, c_2, ⋅⋅⋅, c_n, each of which is either 1 or -1. Your solution is correct if the value of p = ∑_{i = 1}^n c_i \vec{v_i}, satisfies |p| ≤ 1.5 ⋅ 10^6.

It can be shown that a solution always exists under the given constraints.

Examples

Input

3
999999 0
0 999999
999999 0


Output

1 1 -1 


Input

1
-824590 246031


Output

1 


Input

8
-67761 603277
640586 -396671
46147 -122580
569609 -2112
400 914208
131792 309779
-850150 -486293
5272 721899


Output

1 1 1 1 1 1 1 -1 

Solution (in CPP):

Solution:
#include <bits/stdc++.h>
using namespace std;
const long long mod = 1000000007;
long long powmod(long long a, long long b) {
  long long res = 1;
  a %= mod;
  assert(b >= 0);
  for (; b; b >>= 1) {
    if (b & 1) res = res * a % mod;
    a = a * a % mod;
  }
  return res;
}
long long gcd(long long a, long long b) { return b ? gcd(b, a % b) : a; }
struct Z {
  long long x, y;
  int idx;
  int f;
};
bool operator<(Z a, Z b) { return a.idx < b.idx; }
vector<Z> a;
int main() {
  int n;
  scanf("%d", &n);
  for (int i = 1; i <= n; i++) {
    int tmp1, tmp2;
    scanf("%d%d", &tmp1, &tmp2);
    a.push_back((Z){tmp1 * 1ll, tmp2 * 1ll, i, 1});
  }
  while (1) {
    random_shuffle(a.begin(), a.end());
    long long nowx = 0, nowy = 0;
    for (int i = 0; i < n; i++) {
      if (((nowx + a[i].x) * (nowx + a[i].x) +
           (nowy + a[i].y) * (nowy + a[i].y)) <
          ((nowx - a[i].x) * (nowx - a[i].x) +
           (nowy - a[i].y) * (nowy - a[i].y))) {
        a[i].f = 1;
        nowx += a[i].x;
        nowy += a[i].y;
      } else {
        a[i].f = -1;
        nowx -= a[i].x;
        nowy -= a[i].y;
      }
    }
    if (nowx * nowx + nowy * nowy <= 2250000000000ll) {
      sort(a.begin(), a.end());
      for (int kk = 0; kk < n; kk++) cout << a[kk].f << " ";
      return 0;
    }
  }
  return 0;
}