#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
#define rep(i, n) for(int i = 0; i < n; i++)
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define fi first
#define se second
#define pb push_back
#define debug(x) cerr << #x << ": " << x << endl
#define debug_vec(v) cerr << #v << ":"; rep(i, v.size()) cerr << " " << v[i]; cerr << endl
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }
const int INF = (1<<30) - 1;
const ll LINF = (1LL<<60) - 1;

template<int mod>
struct ModInt {
    int x;

    ModInt() : x(0) {}

    ModInt(int64_t y) : x(y >= 0 ? y % mod : (mod - (-y) % mod) % mod) {}

    ModInt &operator+=(const ModInt &p) {
        if((x += p.x) >= mod) x -= mod;
        return *this;
    }

    ModInt &operator-=(const ModInt &p) {
        if((x += mod - p.x) >= mod) x -= mod;
        return *this;
    }

    ModInt &operator*=(const ModInt &p) {
        x = (int) (1LL * x * p.x % mod);
        return *this;
    }

    ModInt &operator/=(const ModInt &p) {
        *this *= p.inverse();
        return *this;
    }

    ModInt operator-() const { return ModInt(-x); }

    ModInt operator+(const ModInt &p) const { return ModInt(*this) += p; }

    ModInt operator-(const ModInt &p) const { return ModInt(*this) -= p; }

    ModInt operator*(const ModInt &p) const { return ModInt(*this) *= p; }

    ModInt operator/(const ModInt &p) const { return ModInt(*this) /= p; }

    bool operator==(const ModInt &p) const { return x == p.x; }

    bool operator!=(const ModInt &p) const { return x != p.x; }

    ModInt inverse() const {
        int a = x, b = mod, u = 1, v = 0, t;
        while(b > 0) {
            t = a / b;
            swap(a -= t * b, b);
            swap(u -= t * v, v);
        }
        return ModInt(u);
    }

    ModInt pow(int64_t n) const {
        ModInt ret(1), mul(x);
        while(n > 0) {
            if(n & 1) ret *= mul;
            mul *= mul;
            n >>= 1;
        }
        return ret;
    }

    friend ostream &operator<<(ostream &os, const ModInt &p) {
        return os << p.x;
    }

    friend istream &operator>>(istream &is, ModInt &a) {
        int64_t t;
        is >> t;
        a = ModInt< mod >(t);
        return (is);
    }

    static int get_mod() { return mod; }
};

const int mod = 1000000007;
using Mint = ModInt<mod>;

ll beki(ll x, ll n, const ll &p) {
    ll ret = 1;
    while (n > 0) {
        if (n & 1) (ret *= x) %= p;
        (x *= x) %= p;
        n >>= 1;
    }
    return ret;
}

void solve() {
    int n;
    cin >> n;
    map<pii, pii> mp;
    int x = 0, y = 0, z = 0;
    rep(i, n) {
        ll a, b;
        cin >> a >> b;
        if (a == 0 && b == 0) z++;
        else if (a == 0) x++;
        else if (b == 0) y++;
        else {
            if (a < 0) {
                a *= -1;
                b *= -1;
            }
            ll g = __gcd(abs(a), abs(b));
            a /= g;
            b /= g;
            if (b < 0) {
                mp[{-b, a}].se++;
            } else {
                mp[{a, b}].fi++;
            }
        }
    }
    Mint ans = 1;
    ans *= beki(2, x, mod) + beki(2, y, mod) - 1;
    for (auto d : mp) {
        ans *= beki(2, d.se.fi, mod) + beki(2, d.se.se, mod) - 1;
    }
    cout << ans + z - 1 << endl;
}

int main(){
    cin.tie(0);
    ios::sync_with_stdio(false);
    solve();
    return 0;
}



Measured memory_bytes: 15936