#include<iostream>
#include<cstring>
using namespace std;
const int NUM_DATA = 30005;
const int MOD = 1000000007;
const int LENG = 205;

class Matrix {
public:
    int v[2][2];

    Matrix(){
        memset(v, 0, sizeof(v));
    }
};


int N;
long long C[NUM_DATA];
int lengD[NUM_DATA], D[NUM_DATA][LENG];

void read() {
    cin >> N;
    for (int i = 0; i < N; ++i) {
        string DStr;
        cin >> C[i] >> DStr;

        lengD[i] = DStr.size();
        for (int j = 0; j < DStr.size(); ++j)
            D[i][j] = DStr[j] - '0';
    }
}


Matrix matmul(const Matrix &a, const Matrix &b) {
    Matrix c;
    for (int i = 0; i < 2; ++i)
        for (int j = 0; j < 2; ++j) {
            int toPush = 0;
            for (int k = 0; k < 2; ++k)
                toPush = (toPush + 1LL * a.v[i][k] * b.v[k][j]) % MOD;
            c.v[i][j] = toPush;
        }
    return c;
}


Matrix matpow(Matrix &p, long long n) {
    if (n == 0) {
        Matrix I;
        I.v[0][0] = 1; I.v[0][1] = 0;
        I.v[1][0] = 0; I.v[1][1] = 1;
        return I;
    }
    
    Matrix t = matpow(p, n / 2);
    return n & 1 ? matmul(matmul(t, t), p) : matmul(t, t);
}


int mypow(int p, int leng, int n[LENG]) {
    int bgn = 0;
    int ret = 1;
    
    while (1) {
        if (n[leng - 1] % 2 == 1) {
            ret = 1LL * ret * p % MOD;
        }
        p = 1LL * p * p % MOD;
        
        
        while (bgn < leng && n[bgn] == 0) ++bgn;
        if (bgn == leng) break;
        
        // n /= 2
        int carry = 0;
        for (int i = bgn; i < leng; ++i) {
            int nextCarry = (n[i] + carry * 10) & 1;
            n[i] = (n[i] + carry * 10) >> 1;
            carry = nextCarry;
        }
    }
    
    return ret;
}


void work() {
    // 1, 1
    // 1, 0
    Matrix mat;
    mat.v[0][0] = 1; mat.v[0][1] = 1;
    mat.v[1][0] = 1; mat.v[1][1] = 0;
    
    int ans = 1;
    for (int i = 0; i < N; ++i) {
        Matrix t = matpow(mat, C[i] + 1);
        ans = 1LL * ans * mypow(t.v[0][0], lengD[i], D[i]) % MOD;
    }
    cout << ans << endl;
}


int main() {
    read();
    work();
    return 0;
}