#include <bits/stdc++.h>
#define rep(i,n) for (int i = 0; i < (n); ++i)
using namespace std;
using ll = long long;
using P = pair<int,int>;

const int mod = 1000000007;
struct mint {
    ll x;
    mint(ll x=0):x( (x%mod + mod) % mod ) {}
    mint operator-() const { return mint(-x); }
    mint& operator+=(const mint a) {
        if ( (x += a.x) >= mod ) x -= mod;
        return *this;
    }
    mint& operator-=(const mint a) {
        if ( ( x += mod - a.x) >= mod ) x -= mod;
        return *this;
    }
    mint& operator*=(const mint a) {
        ( x *= a.x) %= mod;
        return *this;
    }
    mint operator+(const mint a) const { return mint(*this) += a; }
    mint operator-(const mint a) const { return mint(*this) -= a; }
    mint operator*(const mint a) const { return mint(*this) *= a; }
    mint pow(ll t) const {
        if (!t) return 1;
        mint a = pow(t >> 1);
        a *= a;
        if (t&1) a *= *this;
        return a;
    }

    mint inv() const { return pow(mod - 2); }
    mint& operator/=(const mint a) { return *this *= a.inv(); }
    mint operator/(const mint a) { return mint(*this) /= a; }
};
istream& operator>>(istream& is, mint& a) { return is >> a.x; }
ostream& operator<<(ostream& os, const mint& a) { return os << a.x; }

int main() {
    int n;
    cin >> n;
    int zeros = 0;
    map< pair<ll,ll>, P> mp;
    rep(i,n) {
        ll x, y, g;
        cin >> x >> y;
        if (x == 0 && y == 0) {
            zeros++;
            continue;
        }
        g = __gcd(x,y);
        x /= g;
        y /= g;
        if (y < 0) x = -x, y = -y;
        if (y == 0 && x < 0) x = -x, y = -y;
        bool rot90 = (x <= 0);
        if (rot90) {
            int tmp = x;
            x = y, y = -tmp;
        }
        if(rot90) mp[{x,y}].first++;
        else mp[{x,y}].second++;
    }
    mint ans = 1;
    for (auto p : mp) {
        int s = p.second.first;
        int t = p.second.second;
        mint cur = 1;
        cur += mint(2).pow(s) - 1;
        cur += mint(2).pow(t) - 1;
        ans *= cur;
    }
    ans -= 1;
    ans += zeros;
    cout << ans << endl;
    return 0;
}