#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include using namespace std; using Int = long long; template ostream &operator<<(ostream &os, const pair &a) { return os << "(" << a.first << ", " << a.second << ")"; }; template void pv(T a, T b) { for (T i = a; i != b; ++i) cerr << *i << " "; cerr << endl; } template bool chmin(T &t, const T &f) { if (t > f) { t = f; return true; } return false; } template bool chmax(T &t, const T &f) { if (t < f) { t = f; return true; } return false; } //////////////////////////////////////////////////////////////////////////////// template struct ModInt { static constexpr unsigned M = M_; unsigned x; constexpr ModInt() : x(0U) {} constexpr ModInt(unsigned x_) : x(x_ % M) {} constexpr ModInt(unsigned long long x_) : x(x_ % M) {} constexpr ModInt(int x_) : x(((x_ %= static_cast(M)) < 0) ? (x_ + static_cast(M)) : x_) {} constexpr ModInt(long long x_) : x(((x_ %= static_cast(M)) < 0) ? (x_ + static_cast(M)) : x_) {} ModInt &operator+=(const ModInt &a) { x = ((x += a.x) >= M) ? (x - M) : x; return *this; } ModInt &operator-=(const ModInt &a) { x = ((x -= a.x) >= M) ? (x + M) : x; return *this; } ModInt &operator*=(const ModInt &a) { x = (static_cast(x) * a.x) % M; return *this; } ModInt &operator/=(const ModInt &a) { return (*this *= a.inv()); } ModInt pow(long long e) const { if (e < 0) return inv().pow(-e); ModInt a = *this, b = 1U; for (; e; e >>= 1) { if (e & 1) b *= a; a *= a; } return b; } ModInt inv() const { unsigned a = M, b = x; int y = 0, z = 1; for (; b; ) { const unsigned q = a / b; const unsigned c = a - q * b; a = b; b = c; const int w = y - static_cast(q) * z; y = z; z = w; } assert(a == 1U); return ModInt(y); } ModInt operator+() const { return *this; } ModInt operator-() const { ModInt a; a.x = x ? (M - x) : 0U; return a; } ModInt operator+(const ModInt &a) const { return (ModInt(*this) += a); } ModInt operator-(const ModInt &a) const { return (ModInt(*this) -= a); } ModInt operator*(const ModInt &a) const { return (ModInt(*this) *= a); } ModInt operator/(const ModInt &a) const { return (ModInt(*this) /= a); } template friend ModInt operator+(T a, const ModInt &b) { return (ModInt(a) += b); } template friend ModInt operator-(T a, const ModInt &b) { return (ModInt(a) -= b); } template friend ModInt operator*(T a, const ModInt &b) { return (ModInt(a) *= b); } template friend ModInt operator/(T a, const ModInt &b) { return (ModInt(a) /= b); } explicit operator bool() const { return x; } bool operator==(const ModInt &a) const { return (x == a.x); } bool operator!=(const ModInt &a) const { return (x != a.x); } friend std::ostream &operator<<(std::ostream &os, const ModInt &a) { return os << a.x; } }; //////////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////////// // M: prime, G: primitive root, 2^K | M - 1 template struct Fft { static_assert(2U <= M_, "Fft: 2 <= M must hold."); static_assert(M_ < 1U << 30, "Fft: M < 2^30 must hold."); static_assert(1 <= K_, "Fft: 1 <= K must hold."); static_assert(K_ < 30, "Fft: K < 30 must hold."); static_assert(!((M_ - 1U) & ((1U << K_) - 1U)), "Fft: 2^K | M - 1 must hold."); static constexpr unsigned M = M_; static constexpr unsigned M2 = 2U * M_; static constexpr unsigned G = G_; static constexpr int K = K_; ModInt FFT_ROOTS[K + 1], INV_FFT_ROOTS[K + 1]; ModInt FFT_RATIOS[K], INV_FFT_RATIOS[K]; Fft() { const ModInt g(G); for (int k = 0; k <= K; ++k) { FFT_ROOTS[k] = g.pow((M - 1U) >> k); INV_FFT_ROOTS[k] = FFT_ROOTS[k].inv(); } for (int k = 0; k <= K - 2; ++k) { FFT_RATIOS[k] = -g.pow(3U * ((M - 1U) >> (k + 2))); INV_FFT_RATIOS[k] = FFT_RATIOS[k].inv(); } assert(FFT_ROOTS[1] == M - 1U); } // as[rev(i)] <- \sum_j \zeta^(ij) as[j] void fft(ModInt *as, int n) const { assert(!(n & (n - 1))); assert(1 <= n); assert(n <= 1 << K); int m = n; if (m >>= 1) { for (int i = 0; i < m; ++i) { const unsigned x = as[i + m].x; // < M as[i + m].x = as[i].x + M - x; // < 2 M as[i].x += x; // < 2 M } } if (m >>= 1) { ModInt prod = 1U; for (int h = 0, i0 = 0; i0 < n; i0 += (m << 1)) { for (int i = i0; i < i0 + m; ++i) { const unsigned x = (prod * as[i + m]).x; // < M as[i + m].x = as[i].x + M - x; // < 3 M as[i].x += x; // < 3 M } prod *= FFT_RATIOS[__builtin_ctz(++h)]; } } for (; m; ) { if (m >>= 1) { ModInt prod = 1U; for (int h = 0, i0 = 0; i0 < n; i0 += (m << 1)) { for (int i = i0; i < i0 + m; ++i) { const unsigned x = (prod * as[i + m]).x; // < M as[i + m].x = as[i].x + M - x; // < 4 M as[i].x += x; // < 4 M } prod *= FFT_RATIOS[__builtin_ctz(++h)]; } } if (m >>= 1) { ModInt prod = 1U; for (int h = 0, i0 = 0; i0 < n; i0 += (m << 1)) { for (int i = i0; i < i0 + m; ++i) { const unsigned x = (prod * as[i + m]).x; // < M as[i].x = (as[i].x >= M2) ? (as[i].x - M2) : as[i].x; // < 2 M as[i + m].x = as[i].x + M - x; // < 3 M as[i].x += x; // < 3 M } prod *= FFT_RATIOS[__builtin_ctz(++h)]; } } } for (int i = 0; i < n; ++i) { as[i].x = (as[i].x >= M2) ? (as[i].x - M2) : as[i].x; // < 2 M as[i].x = (as[i].x >= M) ? (as[i].x - M) : as[i].x; // < M } } // as[i] <- (1/n) \sum_j \zeta^(-ij) as[rev(j)] void invFft(ModInt *as, int n) const { assert(!(n & (n - 1))); assert(1 <= n); assert(n <= 1 << K); int m = 1; if (m < n >> 1) { ModInt prod = 1U; for (int h = 0, i0 = 0; i0 < n; i0 += (m << 1)) { for (int i = i0; i < i0 + m; ++i) { const unsigned long long y = as[i].x + M - as[i + m].x; // < 2 M as[i].x += as[i + m].x; // < 2 M as[i + m].x = (prod.x * y) % M; // < M } prod *= INV_FFT_RATIOS[__builtin_ctz(++h)]; } m <<= 1; } for (; m < n >> 1; m <<= 1) { ModInt prod = 1U; for (int h = 0, i0 = 0; i0 < n; i0 += (m << 1)) { for (int i = i0; i < i0 + (m >> 1); ++i) { const unsigned long long y = as[i].x + M2 - as[i + m].x; // < 4 M as[i].x += as[i + m].x; // < 4 M as[i].x = (as[i].x >= M2) ? (as[i].x - M2) : as[i].x; // < 2 M as[i + m].x = (prod.x * y) % M; // < M } for (int i = i0 + (m >> 1); i < i0 + m; ++i) { const unsigned long long y = as[i].x + M - as[i + m].x; // < 2 M as[i].x += as[i + m].x; // < 2 M as[i + m].x = (prod.x * y) % M; // < M } prod *= INV_FFT_RATIOS[__builtin_ctz(++h)]; } } if (m < n) { for (int i = 0; i < m; ++i) { const unsigned y = as[i].x + M2 - as[i + m].x; // < 4 M as[i].x += as[i + m].x; // < 4 M as[i + m].x = y; // < 4 M } } const ModInt invN = ModInt(n).inv(); for (int i = 0; i < n; ++i) { as[i] *= invN; } } void fft(vector> &as) const { fft(as.data(), as.size()); } void invFft(vector> &as) const { invFft(as.data(), as.size()); } vector> convolve(vector> as, vector> bs) const { if (as.empty() || bs.empty()) return {}; const int len = as.size() + bs.size() - 1; int n = 1; for (; n < len; n <<= 1) {} as.resize(n); fft(as); bs.resize(n); fft(bs); for (int i = 0; i < n; ++i) as[i] *= bs[i]; invFft(as); as.resize(len); return as; } vector> square(vector> as) const { if (as.empty()) return {}; const int len = as.size() + as.size() - 1; int n = 1; for (; n < len; n <<= 1) {} as.resize(n); fft(as); for (int i = 0; i < n; ++i) as[i] *= as[i]; invFft(as); as.resize(len); return as; } }; constexpr unsigned MO = 120586241; using Mint = ModInt; const Fft FFT; constexpr Mint G = 9142366; constexpr int LIM = 1 << 19; Mint inv[LIM], fac[LIM], invFac[LIM]; void prepare() { inv[1] = 1; for (int i = 2; i < LIM; ++i) { inv[i] = -((Mint::M / i) * inv[Mint::M % i]); } fac[0] = invFac[0] = 1; for (int i = 1; i < LIM; ++i) { fac[i] = fac[i - 1] * i; invFac[i] = invFac[i - 1] * inv[i]; } } Mint binom(Int n, Int k) { if (n < 0) { if (k >= 0) { return ((k & 1) ? -1 : +1) * binom(-n + k - 1, k); } else if (n - k >= 0) { return (((n - k) & 1) ? -1 : +1) * binom(-k - 1, n - k); } else { return 0; } } else { if (0 <= k && k <= n) { assert(n < LIM); return fac[n] * invFac[k] * invFac[n - k]; } else { return 0; } } } constexpr int TEN[] = { 1, 10, 100, 1000, 10000, 100000, }; int N, K, T; Int M; vector A; constexpr int MAX_LEN = 1 << 19; int zw[MAX_LEN]; Mint zas[5][MAX_LEN], zbs[5][MAX_LEN], zcs[5][MAX_LEN]; vector multiMul(const vector &as, const vector &bs, int na = -1, int nb = -1) { if (!~na) na = as.size(); if (!~nb) nb = bs.size(); chmin(na, TEN[T]); chmin(nb, TEN[T]); assert((int)as.size() >= na); assert((int)bs.size() >= nb); const int nc = min(na + nb, TEN[T]); int len = 1; for (; len < na + nb; len <<= 1) {} for (int t = 0; t < T; ++t) { fill(zas[t], zas[t] + len, 0); fill(zbs[t], zbs[t] + len, 0); fill(zcs[t], zcs[t] + len, 0); } for (int h = 0; h < na; ++h) { zas[zw[h]][h] += as[h]; } for (int h = 0; h < nb; ++h) { zbs[zw[h]][h] += bs[h]; } for (int t = 0; t < T; ++t) { FFT.fft(zas[t], len); FFT.fft(zbs[t], len); } for (int ta = 0; ta < T; ++ta) for (int tb = 0; tb < T; ++tb) { const int t = (ta + tb) % T; for (int h = 0; h < len; ++h) { zcs[t][h] += zas[ta][h] * zbs[tb][h]; } } for (int t = 0; t < T; ++t) { FFT.invFft(zcs[t], len); } vector cs(nc, 0); for (int h = 0; h < nc; ++h) { cs[h] = zcs[zw[h]][h]; } return cs; } // TODO: save FFT... // b <- b - (a b - 1) b vector multiInv(const vector &as, int n) { vector bs(n, 0); bs[0] = 1; for (int m = 1; m < n; m <<= 1) { auto cs = multiMul(as, bs, m << 1, m); cs[0] -= 1; cs = multiMul(cs, bs, -1, m); for (int h = m; h < m << 1 && h < n; ++h) bs[h] -= cs[h]; } return bs; } // D log(a) = (D a) / a vector multiLog(const vector &as, int n) { chmin(n, TEN[T]); assert((int)as.size() >= n); assert(as[0] == 1); vector bs(n, 0); for (int h = 0; h < n; ++h) bs[h] = h * as[h]; bs = multiMul(bs, multiInv(as, n)); for (int h = 1; h < n; ++h) bs[h] *= inv[h]; return bs; } // b <- b - (I (c (D b - b D (a mod x^m)) + D (a mod x^m)) - a) b // c <- c - (b c - 1) c vector multiExp(const vector &as, int n) { // cerr<<" multiExp n = "<= T * (10 - 1)) { return vector(TEN[T], 0); } vector bs(TEN[T], 0); bs[0] = 1; for (; e; e >>= 1) { if (e & 1) bs = multiMul(bs, as); as = multiMul(as, as); } return bs; } } } Mint GG[10][10], invGG[10][10]; void dft(vector &as) { Mint work0[10], work1[10]; for (int k = T; k < K; ++k) { for (int h = 0; h < TEN[K]; ++h) if (h / TEN[k] % 10 == 0) { for (int i = 0; i < 10; ++i) { work0[i] = as[h + TEN[k] * i]; } for (int i = 0; i < 10; ++i) { work1[i] = 0; for (int j = 0; j < 10; ++j) { work1[i] += GG[i][j] * work0[j]; } } for (int i = 0; i < 10; ++i) { as[h + TEN[k] * i] = work1[i]; } } } } void invDft(vector &as) { Mint work0[10], work1[10]; for (int k = T; k < K; ++k) { for (int h = 0; h < TEN[K]; ++h) if (h / TEN[k] % 10 == 0) { for (int i = 0; i < 10; ++i) { work0[i] = as[h + TEN[k] * i]; } for (int i = 0; i < 10; ++i) { work1[i] = 0; for (int j = 0; j < 10; ++j) { work1[i] += invGG[i][j] * work0[j]; } } for (int i = 0; i < 10; ++i) { as[h + TEN[k] * i] = work1[i]; } } } const Mint c = Mint(TEN[K - T]).inv(); for (int h = 0; h < TEN[K]; ++h) { as[h] *= c; } } int main() { prepare(); // cerr<waf(100,0); waf[1]=1; waf[10]=2; multiExp(waf,100); } } return 0; }