#include using namespace std; #define INF_LL (int64)1e18 #define INF (int32)1e9 #define REP(i, n) for(int64 i = 0;i < (n);i++) #define FOR(i, a, b) for(int64 i = (a);i < (b);i++) #define all(x) x.begin(),x.end() #define fs first #define sc second using int32 = int_fast32_t; using uint32 = uint_fast32_t; using int64 = int_fast64_t; using uint64 = uint_fast64_t; using PII = pair; using PLL = pair; const double eps = 1e-10; templateinline void chmin(A &a, B b){if(a > b) a = b;} templateinline void chmax(A &a, B b){if(a < b) a = b;} template vector make_v(size_t a){return vector(a);} template auto make_v(size_t a,Ts... ts){ return vector(ts...))>(a,make_v(ts...)); } template typename enable_if::value==0>::type fill_v(T &t,const V &v){t=v;} template typename enable_if::value!=0>::type fill_v(T &t,const V &v){ for(auto &e:t) fill_v(e,v); } template<::std::uint_fast64_t mod> class ModInt{ private: using value_type = ::std::uint_fast64_t; value_type n; public: ModInt() : n(0) {} ModInt(value_type n_) : n(n_ % mod) {} ModInt(const ModInt& m) : n(m.n) {} template explicit operator T() const { return static_cast(n); } value_type get() const { return n; } friend ::std::ostream& operator<<(::std::ostream &os, const ModInt &a) { return os << a.n; } friend ::std::istream& operator>>(::std::istream &is, ModInt &a) { value_type x; is >> x; a = ModInt(x); return is; } bool operator==(const ModInt& m) const { return n == m.n; } bool operator!=(const ModInt& m) const { return n != m.n; } ModInt& operator*=(const ModInt& m){ n = n * m.n % mod; return *this; } ModInt pow(value_type b) const{ ModInt ans = 1, m = ModInt(*this); while(b){ if(b & 1) ans *= m; m *= m; b >>= 1; } return ans; } ModInt inv() const { return (*this).pow(mod-2); } ModInt& operator+=(const ModInt& m){ n += m.n; n = (n < mod ? n : n - mod); return *this; } ModInt& operator-=(const ModInt& m){ n += mod - m.n; n = (n < mod ? n : n - mod); return *this; } ModInt& operator/=(const ModInt& m){ *this *= m.inv(); return *this; } ModInt operator+(const ModInt& m) const { return ModInt(*this) += m; } ModInt operator-(const ModInt& m) const { return ModInt(*this) -= m; } ModInt operator*(const ModInt& m) const { return ModInt(*this) *= m; } ModInt operator/(const ModInt& m) const { return ModInt(*this) /= m; } ModInt& operator++(){ n += 1; return *this; } ModInt& operator--(){ n -= 1; return *this; } ModInt operator++(int){ ModInt old(n); n += 1; return old; } ModInt operator--(int){ ModInt old(n); n -= 1; return old; } ModInt operator-() const { return ModInt(mod-n); } }; template<::std::size_t size, ::std::uint_fast64_t mod=1000000007> class Factorial{ private: using value_type = ModInt; ::std::vector fact, inv; public: Factorial() : fact(size+1, 1), inv(size+1, 1){ for(::std::size_t i = 1; i <= size; ++i){ fact[i] = fact[i-1] * value_type(i); inv[i] = fact[i].inv(); } } value_type comb(::std::int64_t a, ::std::int64_t b){ assert(a >= b); assert(b >= 0); return fact[a]*inv[b]*inv[a-b]; } value_type& operator[](::std::size_t k){ return fact[k]; } }; const int64 mod = 1e9+7; using Mint = ModInt; int main(void) { auto cnt = make_v(2, 2*2000*2000+1); int64 N, D; cin >> N >> D; FOR(i, 1, N+1) { FOR(j, 1, N+1) { cnt[0][i*i+j*j]++; if (i*i-j*j+D >= 0 && i*i-j*j+D < cnt[0].size()) cnt[1][i*i-j*j+D]++; } } int64 res= 0; FOR(i, 1, 2*2000*2000+1) { res += cnt[0][i]*cnt[1][i]; } cout << res << endl; }