//#define _GLIBCXX_DEBUG #include #define FOR(i,a,b) for(ll i=a;i=b;i--) #define per(i,a) ROF(i,a,0) #define pb push_back using namespace std; using ll=long long; using ld=long double; using ch=char; typedef pair P; typedef vector vl; typedef vector vvl; typedef vector

vP; typedef vector vc; typedef vector vvc; const ll MOD=1000000007; const ll MOD2=998244353; const ld PI=acos(-1); const ll INF=1e18; struct edge{ll to,cost;}; struct edge2{ll from,to,cost;}; template bool chmax(T &a, const T& b) { if (a < b) { a = b; return true; } return false; } template bool chmin(T &a, const T& b) { if (a > b) { a = b; return true; } return false; } int main() { ios::sync_with_stdio(false); cin.tie(nullptr); ll N,D; cin >> N >> D; vl X(N),V(N); ll res=0; rep(i,N){ cin >> X[i]; } rep(i,N){ cin >> V[i]; res+=V[i]; } cout << (D+res-1)/res << endl; }