// template version 1.6 // {{{ define basic macro using namespace std; #include #include // varibable settings #define int long long #define INF 1000000000000000000LL // #define INF 2147483647 #define MOD 1000000007LL // #define MOD 998244353LL #define infile "../test/sample-1.in" #define _overload3(_1,_2,_3,name,...) name #define _rep(i,n) repi(i,0,n) #define repi(i,a,b) for(int i=(int)(a);i<(int)(b);++i) #define rep(...) _overload3(__VA_ARGS__,repi,_rep,)(__VA_ARGS__) #define _rrep(i,n) rrepi(i,0,n) #define rrepi(i,a,b) for(int i=(int)(b-1);i>=(int)(a);--i) #define rrep(...) _overload3(__VA_ARGS__,rrepi,_rrep,)(__VA_ARGS__) #define all(x) (x).begin(),(x).end() #define sz(x) ((int)(x).size()) #define pb(a) push_back(a) #define mp(a, b) make_pair(a, b) #define uni(x) sort(all(x));x.erase(unique(all(x)),x.end()) #define ten(n) ((int)1e##n) template size_t sza(const T (&array)[N]) { return N; } template inline void chmax(T &a, const T &b) { if(a < b) a = b; } template inline void chmin(T &a, const T &b) { if(a > b) a = b; } template T in() {T x; cin>>x; return (x);} struct Fast { Fast(){ std::cin.tie(0); ios::sync_with_stdio(false); } } fast; // dump macro #ifdef PCM #include "dump.hpp" #else #define dump(...) 42 #define dump_1d(...) 42 #define dump_2d(...) 42 #endif typedef long long ll; typedef vector vi; typedef vector vvi; typedef long double ld; typedef pair pii; typedef tuple iii; template using PQ = priority_queue, greater>; int dx[]={1, -1, 0, 0}; int dy[]={0, 0, 1, -1}; #define fi first #define se second // }}} int solve(){ int n,d;cin>>n>>d; map d1; map d2; rep(x, 1, n+1){ rep(y, 1, n+1){ int t = x*x + y*y; d1[t] += 1; if (t >= n*n - 1 + d) break; } } rep(w, 1, n+1){ rep(z, 1, n+1){ int t = w*w - z*z + d; d2[t] += 1; if (t<=0) break; } } dump(d1); dump(d2); int res = 0; for (auto x: d1){ int k = x.first; int c = x.second; if (d2.find(k)!=d2.end()) res += c * d2[k]; } cout << res << endl; return 0; } signed main() { //{{{ #ifdef INPUT_FROM_FILE std::ifstream in(infile); std::cin.rdbuf(in.rdbuf()); #endif solve(); return 0; } //}}}