#include <algorithm>
#include <iostream>
#include <vector>
using namespace std;

struct patty {
    int cost, count;

    patty() {}
};

bool cmp(patty first, patty second)
 {  

}

vector<patty>pattyArray(3, patty());
int money;
int number;
int answer;

int main() {
    for(int i = 0; i < 3; i++)
        cin >> pattyArray.at(i).cost;
    for (int i = 0; i < 3; i++)
        cin >> pattyArray.at(i).count;

    sort(pattyArray.begin(), pattyArray.end(), cmp);

    cin >> money;

    for (int i = 0; i < 3; i++) {
        number = min(money / pattyArray.at(i).cost, pattyArray.at(i).count);
        answer += number;
        money -= number * pattyArray.at(i).cost;
    }

    cout << answer;
}