#include using namespace std; typedef pair pii; typedef long long ll; typedef vector vi; #define pb push_back #define eb emplace_back #define mp make_pair #define fi first #define se second #define rep(i,n) rep2(i,0,n) #define rep2(i,m,n) for(int i=m;i<(n);i++) #define ALL(c) (c).begin(),(c).end() #define dump(x) cout << #x << " = " << (x) << endl constexpr ll TEN(int n) { return (n == 0) ? 1 : 10 * TEN(n-1); } template ostream& operator<<(ostream& os, const pair& p) { os<<"("< ostream& operator<<(ostream& os, const vector& v) { os<<"{"; rep(i, v.size()) { if (i) os<<","; os<> N >> D; const int B = 4e6; for (int i = 1; i <= N; ++i) { for (int j = 1; j <= N; ++j) { T[i*i-j*j+D+B]++; } } ll ans = 0; for (int i = 1; i <= N; ++i) { for (int j = 1; j <= N; ++j) { ans += T[i * i + j * j + B]; } } cout << ans << endl; return 0; }