#pragma GCC target("avx2") #pragma GCC optimize("03") #pragma GCC optimize("unroll-loops") #include using namespace std; typedef long double ld; typedef long long ll; typedef unsigned long long ull; #define endl "\n" #define FOR(i,a,b) for(int i=(a);i<=(b);i++) #define rep(i,n) for(int i=0;i<(n);i++) #define PII pair #define PLL pair #define ALL(x) (x).begin(), (x).end() constexpr int INF=1<<30; constexpr ll LINF=1LL<<60; constexpr ll mod=1e9+7; constexpr int NIL = -1; templateinline bool chmax(T &a, const T &b) { if (ainline bool chmin(T &a, const T &b) { if (binline int popcount(T a) {return __builtin_popcount(a);} //------------------- constexpr int MX = 2e3 * 2e3 * 2 + 3; int mp1[MX]; int mp2[MX]; int main() { cin.tie(0); ios::sync_with_stdio(false); cout << fixed << setprecision(15); int n,d; cin >> n >> d; // unordered_map mp1; FOR(x,1,n) { FOR(y,1,n) { mp1[x*x+y*y]++; } } // unordered_map mp2; FOR(z,1,n) { FOR(w,1,n) { if(w*w+d-z*z > 1) mp2[w*w+d-z*z]++; } } ll ans = 0; rep(i, MX-1) { ans += mp1[i] * mp2[i]; } cout << ans << endl; return 0; }