#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include using namespace std; #define endl '\n' #define ALL(v) (v).begin(), (v).end() #define RALL(v) (v).rbegin(), (v).rend() #define UNIQ(v) (v).erase(unique((v).begin(), (v).end()), (v).end()) typedef long long ll; typedef long double ld; typedef pair P; typedef complex comp; typedef vector< vector > matrix; struct pairhash { public: template size_t operator()(const pair &x) const { size_t seed = hash()(x.first); return hash()(x.second) + 0x9e3779b9 + (seed<<6) + (seed>>2); } }; const int inf = 1e9 + 9; const ll mod = 1e9 + 7; const double eps = 1e-8; const double pi = acos(-1); int n; ll c[30010]; string d[30010]; typedef vector vec; typedef vector mat; mat mult(mat &A, mat &B) { mat C(A.size(), vec(B[0].size())); for (int i = 0; i < A.size(); i++) { for (int k = 0; k < B.size(); k++) { for (int j = 0; j < B[0].size(); j++) { C[i][j] = (C[i][j] + A[i][k]*B[k][j] + mod) % mod; } } } return C; } mat pow(mat A, ll n) { mat B(A.size(), vec(A.size())); for (int i = 0; i < A.size(); i++) B[i][i] = 1; while (n > 0) { if (n & 1) B = mult(B, A); A = mult(A, A); n >>= 1; } return B; } ll mod_pow(ll x, ll n) { if (x == 0) return 0LL; ll res = 1; while (n > 0) { if (n & 1) res = (res * x) % mod; x = (x * x) % mod; n >>= 1; } return res; } ll exponent(string e) { ll res = 0; int l = e.size(); for (int i = 0; i < l; i++) { res = 10 * res + (e[i]-'0'); res %= (mod-1); } return res; } ll solve() { ll res = 1; mat A = vector >(2, vector(2, 0)); A[0][0] = A[0][1] = A[1][0] = 1; A[1][1] = 0; for (int i = 0; i < n; i++) { mat B = pow(A, c[i]-1); ll a = (B[0][0] * 2 + B[0][1]) % mod; ll e = exponent(d[i]); res *= mod_pow(a, e); res %= mod; } return res; } void input() { cin >> n; for (int i = 0; i < n; i++) cin >> c[i] >> d[i]; } int main() { ios::sync_with_stdio(false); cin.tie(0); cout << fixed << setprecision(15); input(); cout << solve() << endl; }