#include using namespace std; #define rep(i,n) for(int i = 0; i < int(n); i++) #define FOR(i,a,b) for(ll i = a; i < (ll)(b); i++) #define all(a) (a).begin(),(a).end() using ll = long long; using VI = vector; using P = pair; const long long INF = 1LL << 60; const int DX[] = {1,0,-1,0}; const int DY[] = {0,1,0,-1}; int main(){ cin.tie(nullptr); ios_base::sync_with_stdio(false); 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; }