#include<functional>
#include<iostream>
#include<vector>
using namespace std;
int n,a,b,c;
int N=200005;
int main(){
	cin>>n>>a>>b>>c;
	vector<int> dp(N,-1);
	
	dp[0]=0;

	for(int i=0;i<N;++i){
		if(dp[i]==-1)continue;
		if(i+3<N){
			dp[i+3]=max(dp[i+3], dp[i]+a);
		}
		if(i+5<N){
			dp[i+5]=max(dp[i+5], dp[i]+b);
		}
		if(i+10<N){
			dp[i+10]=max(dp[i+10], dp[i]+c);
		}
	}
	cout<<max(0,*max_element(dp.begin(),dp.begin()+n+1))<<endl;
}