#include #include #include #include using namespace std; //----------------------- const int MOD = (int)1e9 + 7; struct mint { int n; mint(int n_ = 0) : n(n_ % MOD) { if (n < 0) n += MOD; } }; mint operator+(mint a, mint b) { return (a.n += b.n) >= MOD ? a.n - MOD : a.n; } mint operator-(mint a, mint b) { return (a.n -= b.n) < 0 ? a.n + MOD : a.n; } mint operator*(mint a, mint b) { return 1LL * a.n * b.n % MOD; } mint &operator+=(mint &a, mint b) { return a = a + b; } mint &operator-=(mint &a, mint b) { return a = a - b; } mint &operator*=(mint &a, mint b) { return a = a * b; } ostream &operator<<(ostream &os, mint a) { return os << a.n; } istream &operator>>(istream &is, mint& a) { return is >> a.n; } mint inv(mint x) { long long a = x.n, b = MOD, u = 1, v = 0; while (b) { long long t = a/b; swap((a -= t*b), b); swap((u -= t*v), v); } return mint(u); } mint operator^(mint a, long long n) { mint r = 1; while (n) { if (n & 1) r *= a; a *= a; n >>= 1; } return r; } bool operator<(const mint &a, const mint &b) { return a.n < b.n; } //----------------------- template struct SegmentTree { using F = function; const F f; const Monoid M1; int sz; vector dat; SegmentTree(int n, const F f, const Monoid &M1) : f(f), M1(M1), sz(1) { while (sz < n) sz <<= 1; dat.assign(sz * 2, M1); } void set(int k, const Monoid &x) { dat[k + sz] = x; } void build() { for (int k = sz - 1; k > 0; k--) { dat[k] = f(dat[2 * k], dat[2 * k + 1]); } } void update(int k, const Monoid &x) { dat[k += sz] = x; while (k >>= 1) dat[k] = f(dat[2 * k], dat[2 * k + 1]); } Monoid get(int a, int b) { // [a, b) Monoid L = M1, R = M1; for (a += sz, b += sz; a < b; a >>= 1, b >>= 1) { if (a & 1) L = f(L, dat[a++]); if (b & 1) R = f(dat[--b], R); } return f(L, R); } Monoid operator[](const int &k) const { return dat[k + sz]; } friend ostream& operator<<(ostream& os, SegmentTree &seg) { for (int i = 0; i < seg.sz; i++) os << seg[i] << " "; return os; } }; template ostream& operator<<(ostream& os, const vector& vec) { for (auto &vi: vec) os << vi << " "; return os; } template struct Matrix { vector> val; Matrix(int n = 1, int m = 1, T x = 0) { val.assign(n, vector(m, x)); } size_t size() const { return val.size(); } vector& operator[](int i) { return val[i]; } const vector& operator[](int i) const { return val[i]; } friend ostream& operator<<(ostream& os, const Matrix M) { for (int i = 0; i < M.size(); ++i) os << M[i] << " \n"[i != M.size() - 1]; return os; } }; template Matrix operator*(const Matrix& A, const Matrix& B) { Matrix R(A.size(), B[0].size()); for (int i = 0; i < A.size(); ++i) for (int j = 0; j < B[0].size(); ++j) for (int k = 0; k < B.size(); ++k) R[i][j] += A[i][k] * B[k][j]; return R; } template vector operator*(const Matrix &A, vector &B) { vector v(A.size()); for (int i = 0; i < A.size(); ++i) for (int k = 0; k < B.size(); ++k) v[i] += A[i][k] * B[k]; return v; } int main() { int n; cin >> n; vector x0(4, 1); using M = Matrix; M I(4, 4); for (int i = 0; i < 4; i++) I[i][i] = 1; M G0(4, 4); G0[0][0] = G0[1][3] = G0[2][3] = G0[3][3] = 1; auto update_x = [](M G, mint xi) { G[0][2] = xi; return G; }; auto update_y = [](M G, mint yi) { G[1][1] = yi, G[2][1] = yi * 2, G[2][2] = yi * yi; return G; }; auto f = [](const M &a, const M &b) { return b * a; }; SegmentTree seg(n, f, I); for (int i = 0; i < n; i++) seg.set(i, G0); seg.build(); int q; cin >> q; while (q--) { char com; cin >> com; if (com == 'x') { int i; mint v; cin >> i >> v; seg.update(i, update_x(seg[i], v)); } if (com == 'y') { int i; mint v; cin >> i >> v; seg.update(i, update_y(seg[i], v)); } if (com == 'a') { int i; cin >> i; cout << (seg.get(0, i) * x0)[0] << endl; } } return 0; }