#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pll = pair<ll, ll>;
#define drep(i, cc, n) for (ll i = (cc); i <= (n); ++i)
#define rep(i, n) drep(i, 0, n - 1)
#define all(a) (a).begin(), (a).end()
#define pb push_back
#define fi first
#define se second

mt19937_64 rng(chrono::system_clock::now().time_since_epoch().count());
const ll MOD1000000007 = 1000000007;
const ll MOD998244353 = 998244353;
const ll MOD[3] = {999727999, 1070777777, 1000000007};
const ll LINF = 1LL << 60;
const int IINF = (1 << 30) - 1;

template<typename T> struct Edge{
    int to; T w;
    Edge(int to_, T w_=1){
        to = to_;
        w=w_;
    }
};
template<typename T> using Tree = vector<vector<Edge<T>>>;
template<typename T> using Graph = vector<vector<Edge<T>>>;
/* 容量&重み付きエッジ for Dinic */
template<typename T> struct REdge{
    int to;
    T cap;
    T cost;
    int rev;
    REdge(int to_, T cap_, T cost_=1){
        to = to_;
        cap = cap_;
        cost = cost_;
    }
    
    REdge(int to_, T cap_, T cost_, int rev_){
        to = to_;
        cap = cap_;
        cost = cost_;
        rev = rev_;
    }
};

/* 残余グラフ for Dinic */
template<typename T> using RGraph = vector<vector<REdge<T>>>;

int main(){
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    
    ll n, a, b, c; cin >> n >> a >> b >> c;
    ll ans = 0;
    ll d = max(10LL*a, max(6LL*b, 3LL*c));
    for(ll xa=0; xa<=10; xa++){
        for(ll xb=0; xb<=6; xb++){
            for(ll xc=0; xc<=3; xc++){
                ll sn = n - 3*xa - 5*xb - 10*xc;
                if(0<=sn && sn%30==0){
                    ans = max(ans, a*xa+b*xb+c*xc+d*sn/30);
                }
            }
        }
    }

    cout << ans << endl;
}