//#define _GLIBCXX_DEBUG #include using namespace std; #define rep(i, n) for (ll i = 0; i < (ll)(n); i++) #define all(a) (a).begin(), (a).end() using ll = long long; const ll INF32 = 2e9; const ll INF64 = 4e18; void printYN(bool ok){ if(ok)cout << "Yes" << endl; else cout << "No" << endl; return; } int main() { int L, R; cin >> L >> R; int ans = 0; if(L<=295&&296<=R)ans++; if(L<=416&&417<=R)ans++; cout << ans << endl; return 0; }