#include <bits/stdc++.h> using namespace std; typedef long long ll; #define rep(i, srt, end) for (long long i = (srt); i < (long long)(end); i++) int main(){ ll n, d; cin >> n >> d; vector<ll> x(n), v(n); rep(i, 0, n) cin >> x[i]; rep(i, 0, n) cin >> v[i]; double l = 0, r = 1e20; while(r - l > 1) { ll m = l + (r - l) / 2; double sum = 0; rep(i, 0, n) sum += v[i] * m; if(sum >= d) r = m; else l = m; } cout << (ll)r << endl; return 0; }