#include <bits/stdc++.h>

#define rep(i, n) for (int (i) = 0; (i) < (int)(n); (i)++)

const int dx[] = {1, 0, -1, 0};
const int dy[] = {0, 1, 0, -1};
using namespace std;
typedef long long ll;

const ll MOD = 1e9+7;
const ll MM = MOD-1;

ll getMod(const string& s) {
    int n = s.size();
    ll ans = 0;
    for (int i = 0; i < n; i++) {
        ans *= 10;
        ans += (s[i]-'0');
        ans %= MM;
    }
    return ans;
}

template<int R, int C, ll mod>
class Mat {
public:
    Mat() : mat(R, vector<ll>(C)) {}
    Mat<R, C, mod>& operator=(const Mat<R, C, mod> rhs) {return rhs;}

    vector<ll>& operator[](int r) {return mat[r];}
    const vector<ll> operator[](int r) const {return mat[r];}

    Mat<R, C, mod>& operator+=(const Mat<R, C, mod> rhs) {
        for (int i = 0; i < R; i++) for (int j = 0; j < C; j++) {
            mat[i][j] += rhs.mat[i][j];
            if (mat[i][j] >= mod) mat[i][j] %= mod;
        }
        return (*this);
    }
    Mat<R, C, mod>& operator-=(const Mat<R, C, mod> rhs) {
        for (int i = 0; i < R; i++) for (int j = 0; j < C; j++) {
            mat[i][j] -= rhs.mat[i][j];
            mat[i][j] %= mod;
            if (mat[i][j] < 0) mat[i][j] += mod;
        }
        return (*this);
    }
    const Mat<R, C, mod> operator+(const Mat<R, C, mod> rhs) const {
        Mat<R, C, mod> ret = (*this);
        ret += rhs;
        return ret;
    }
    const Mat<R, C, mod> operator-(const Mat<R, C, mod> rhs) const {
        Mat<R, C, mod> ret = (*this);
        ret -= rhs;
        return ret;
    }
    const Mat<R, R, mod> operator*(const Mat<C, R, mod> rhs) const {
        Mat<R, R, mod> ret;
        for (int i = 0; i < R; i++) for (int j = 0; j < R; j++) {
            for (int k = 0; k < C; k++) {
                ret[i][j] += (*this)[i][k] * rhs[k][j];
                if (ret[i][j] >= mod) ret[i][j] %= mod;
            }
        }
        return ret;
    }

    const Mat<R, R, mod> pow(ll N) const {
        if (N == 0) {
            Mat<R, R, mod> E;
            for (int i = 0; i < R; i++) E[i][i] = 1;
            return E;
        }
        if (N == 1) {
            return (*this);
        }
        if (N % 2 == 1) {
            Mat<R, R, mod> tmp = pow(N-1);
            return tmp * (*this);
        } else {
            Mat<R, R, mod> tmp = pow(N/2);
            return tmp*tmp;
        }
    }

    void print() const {
        for (int i = 0; i < R; i++) {
            for (int j = 0; j < C; j++) {
                cout << mat[i][j] << "\t";
            }
            cout << endl;
        }
    }
private:
    vector<vector<ll> > mat;
};

typedef Mat<2, 2, MOD> Mat2x2;

// x^p
ll powmod(ll x, ll p, ll m = MOD) {
    if (x == 0) return 0;
    if (p == 0) return 1;
    if (p == 1) return x;
    if (p % 2 == 0) {
        ll tmp = powmod(x, p/2, m);
        return (tmp*tmp)%m;
    } else {
        ll tmp = powmod(x, p-1, m);
        return (tmp*x)%m;
    }
}

int main() {
    int N;
    cin >> N;
    ll ans = 1;
    while (N--) {
        ll C;
        string D;
        cin >> C >> D;
        ll d = getMod(D);
        Mat2x2 a;
        a[0][1] = a[1][0] = a[1][1] = 1;
        Mat2x2 b = a.pow(C-1);
        ll tmp = (b[1][0]+b[1][1]*2)%MOD;
        tmp = powmod(tmp, d);
        ans *= tmp;
        ans %= MOD;
    }
    cout << ans << endl;
    return 0;
}