import std.stdio;
import std.algorithm;
import std.string;
import std.range;
import std.array;
import std.conv;
import std.complex;
import std.math;
import std.ascii;
import std.bigint;
import std.container;
import std.typecons;

auto readInts() {
	return array(map!(to!int)(readln().strip().split()));
}
auto readInt() {
	return readInts()[0];
}
auto readLongs() {
	return array(map!(to!long)(readln().strip().split()));
}
auto readLong() {
	return readLongs()[0];
}

void readlnTo(T...)(ref T t) {
    auto s = readln().split();
    assert(s.length == t.length);
    foreach(ref ti; t) {
        ti = s[0].to!(typeof(ti));
        s = s[1..$];
    }
}

const real eps = 1e-10;

void main(){
    long n, k;
    readlnTo(n ,k);
    auto a = readLongs();
    auto b = readLongs();
    long l = 0, u = 10000000000;
    while(u-l > 1) {
        auto m = (u+l)/2;
        auto t = k;
        foreach(i; iota(n.to!uint)) {
            if(m * a[i] > b[i]) {
                t -= m*a[i] - b[i];
            }
            if(t < 0) {
                break;
            }
        }
        if(t < 0) {
            u = m;
        } else {
            l = m;
        }
    }
    writeln(l);
}

