#include <bits/stdc++.h>
#include <atcoder/all>
using namespace atcoder;
using namespace std;
using ll=long long;
using ld=long double;
ld pie=3.141592653589793;
ll mod=998244353 ;
ld inf=10000999999999900;
int main(){
    ll n;
    ll a,b,c;
    cin >> n >> a >> b >> c;
    vector<ll>dp(n+1,-1);
    dp[0]=0;
    ll ans=0;
    for (ll i = 3; i <=n; i++)
    {
        if (i-3>=0&&dp[i-3]>=0)
        {
            dp[i]=max(dp[i],dp[i-3]+a);
        }
        if (i-5>=0&&dp[i-5]>=0)
        {
            dp[i]=max(dp[i],dp[i-5]+b);
        }
        if (i-10>=0&&dp[i-10]>=0)
        {
            dp[i]=max(dp[i],dp[i-10]+c);
        }
        ans=max(ans,dp[i]);
    }
    cout << ans << endl;
}