#include <iostream>
#include <string>
#include <vector>
#define REP(i,a,b) for(int i = (a); i < (b); i++)
#define rep(i,a) REP(i,0,a)
using namespace std;
typedef long long ll;
typedef vector<ll> vec;
typedef vector<vec> mat;

const int MOD = 1000000007;

mat mul(mat &A, mat&B) {
    mat C(A.size(), vec(B[0].size()));
    rep(i, A.size()) {
        rep(k, B.size()) {
            rep(j, B[0].size()) {
                C[i][j] = (C[i][j] + A[i][k] * B[k][j]) % MOD;
            }
        }
    }
    return C;
}

mat pow(mat A, ll n) {
    mat B(A.size(), vec(A.size()));
    rep(i, A.size()) {
        B[i][i] = 1;
    }
    while (n > 0) {
        if (n & 1) B = mul(B, A);
        A = mul(A, A);
        n >>= 1;
    }
    return B;
}

int main(void){
    int N;
    cin >> N;
    ll ans = 1;
    rep(loop,N) {
        ll C;
        string SD;
        cin >> C >> SD;
        mat A(2, vec(2));
        A[0][0] = 1; A[0][1] = 1;
        A[1][0] = 1; A[1][1] = 0;
        A = pow(A,C+2);
        ll patern = A[1][0];
        
        int D = stoi(SD)%MOD;
        rep(i,D) {
            ans = ans*patern%MOD;
        }
    }
    cout << ans << endl;
    return 0;    
}