#include <bits/stdc++.h>
using namespace std;
using ll = long long;

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    ll n;
    vector<ll> a(3), b = {3, 5, 10};
    cin >> n >> a[0] >> a[1] >> a[2];
    vector<ll> dp(n + 1, -(1ll << 60));
    dp[n] = 0;
    for(int i = 0; i < 3; i++){
        for(int j = n; j >= b[i]; j--){
            dp[j - b[i]] = max(dp[j - b[i]], dp[j] + a[i]);
        }
    }
    cout << *max_element(dp.begin(), dp.end()) << '\n';
}