#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);} //------------------- 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) { mp2[w*w+d-z*z]++; } } ll ans = 0; for(auto &[k, v]: mp1) { if(mp2[k] > 0) ans += v * mp2[k]; } cout << ans << endl; return 0; }