#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#define REP(i,a,b) for(int i = (a); i < (b); i++)
#define rep(i,a) REP(i,0,a)
using namespace std;
typedef vector<int> 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, int 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 pow_mod(int a, int p, int MOD) {
    if (p == 0) return 0;
    int res = 1;
    while (p > 0) {
        if (p & 1) res = res * a % MOD;
        a = a * a % MOD;
        p >>= 1;
    }
    return res;
}

int main(void){
    mat A(2, vec(2));
    A[0][0] = 1; A[0][1] = 1;
    A[1][0] = 1; A[1][1] = 0;
    vector<int> a(201);
    a[0] = 1;
	for (int i = 1; i <= 200; i++)
	a[i] = a[i - 1] * 10 % (MOD - 1);

    int ans = 1;
    int N;
    cin >> N;
    while (N--) {
        int C;
        string D;
        cin >> C >> D;

        int comb = pow(A,C+2)[1][0] % MOD;
        int p = 0;
        rep(i, D.size()) {
            p = (p + a[D.length() - i - 1] * (D[i] - '0')) % (MOD - 1);
        }
        ans = (ans * pow_mod(comb, p, MOD)) % MOD;
    }
    cout << ans << endl;
    return 0;    
}