//Optional FAST

//#pragma GCC optimize("Ofast")
//#pragma GCC optimize("unroll-loops")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,fma,abm,mmx,avx,avx2,tune=native")

//Required Libraries

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/detail/standard_policies.hpp>

//Required namespaces

using namespace std;
using namespace __gnu_pbds;

//Required defines

#define endl '\n'

#define READ(X) cin>>X;
#define READV(X) long long X; cin>>X;
#define READAR(A,N) long long A[N]; for(long long i=0;i<N;i++) {cin>>A[i];}
#define rz(A,N) A.resize(N);
#define sz(X) (long long)(X.size())
#define pb push_back
#define pf push_front
#define fi first
#define se second
#define FORI(a,b,c) for(long long a=b;a<c;a++)
#define FORD(a,b,c) for(long long a=b;a>c;a--)

//Required typedefs

typedef tree<long long,null_type,less<long long>,rb_tree_tag,tree_order_statistics_node_update> ordered_set;
typedef tree<long long,null_type,greater<long long>,rb_tree_tag,tree_order_statistics_node_update> ordered_set1;
typedef long long ll;
typedef long double ld;
typedef pair<int,int> pii;
typedef pair<long long,long long> pll;

//Required Constants

const long long inf=(long long)1e18;
const long long MOD=(long long)(1e9+7);
const long long INIT=(long long)(1e6+1);

//Required Functions

ll power(ll x,ll y) 
{ 
    if (y == 0) 
        return 1; 
    ll p = power(x, y/2) % MOD; 
    p = (p * p) % MOD; 
  
    return (y%2 == 0)? p : (x * p) % MOD; 
}
ll modInverse(ll a) 
{ 
   return power(a,MOD-2); 
   
}

//Work

int main()
{
    #ifndef ONLINE_JUDGE
    if (fopen("INPUT.txt", "r"))
    {
        freopen ("INPUT.txt" , "r" , stdin);
        //freopen ("OUTPUT.txt" , "w" , stdout);
    }
    #endif
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);

    clock_t clk;
    clk = clock();
//-----------------------------------------------------------------------------------------------------------//

    map<pll,ll> cnt;
    READV(N);
    ll tot=0;
    ll cnt_a_zero=0;
    ll cnt_b_zero=0;
    ll ans1=0;
    ll overall=N;
    FORI(i,0,N)
    {
        ll A,B;
        cin>>A>>B;
        if(A==0 && B==0)
        {
            ans1++;
            overall--;
        }
        else if(A==0)
        {
            cnt_a_zero++;
        }
        else if(B==0)
        {
            cnt_b_zero++;
        }
        else if(A!=0 && B!=0)
        {
            tot++;
            if(A<0 && B<0)
            {
                A=-A;
                B=-B;
            }
            else if(B<0 && A>0)
            {
                A=-A;
                B=-B;
            }
            cnt[{A/__gcd(abs(A),abs(B)),B/__gcd(abs(A),abs(B))}]++;
        }
    }
    ll ans=1;
    for(auto v:cnt)
    {
        if(v.fi.fi<0)
        {
            ll val=power(2,v.se);
            if(cnt.count({v.fi.se,-v.fi.fi})>0)
            {
                val+=(power(2,cnt[{v.fi.se,-v.fi.fi}])-1+MOD)%MOD;
            }
            ans=(ans*val)%MOD;
        }
        else
        {
            if(cnt.count({-v.fi.se,v.fi.fi})==0)
            {
                ans=(ans*(power(2,v.se)))%MOD;  
            }
        }
    }
    ans=(ans*((((power(2,cnt_a_zero)+power(2,cnt_b_zero))%MOD)-1+MOD)%MOD))%MOD;
    ans=(ans-1+MOD)%MOD;
    ans+=ans1;
    ans=ans%MOD;
    cout<<ans<<endl;

//-----------------------------------------------------------------------------------------------------------//


    clk = clock() - clk;
    cerr << fixed << setprecision(6) << "Time: " << ((double)clk)/CLOCKS_PER_SEC << endl;

    return 0;
}

Measured memory_bytes: 16184