#include #include using namespace atcoder; using namespace std; // using mint = atcoder::modint998244353; using ll = long long; const int INF = 1001001001; const ll LINF = 3001001001001001001; const int MOD = 998244353; const string Yes = "Yes"; const string No = "No"; #define reps(i, a, n) for (ll i = (a); i < (ll)(n); ++i) #define rep(i, n) reps(i, 0, n) #define all(a) (a).begin(), (a).end() #define rall(a) (a).rbegin(), (a).rend() template bool chmin(T& a, T b){if(a > b){a = b; return true;} return false;} template bool chmax(T& a, T b){if(a < b){a = b; return true;} return false;} template istream &operator>>(istream &is, vector &v) {for (T &in : v)is >> in;return is;} vector> dir4 = {{0,1},{0,-1},{1,0},{-1,0},}; vector> dir8 = {{0,1},{0,-1},{1,0},{-1,0},{-1,-1},{-1,1},{1,-1},{1,1},}; 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; }