import java.util.Scanner;


public class sc2 {
    static int[][] mem;
    public static void main(String[] args)
    {
        Scanner in = new Scanner(System.in);

        while(true)
        {
            mem = new int[2001][2001];
            for(int i = 0; i < 2001; i++)
                for(int j = 0; j < 2001; j++)
                    mem[i][j]=-1;
            int minerals = in.nextInt()/25;
            int gas = in.nextInt()/25;
            int zealot = in.nextInt();
            int stalker = in.nextInt();
            int sentry = in.nextInt();

            if(minerals == 0 && gas==0 && zealot==0 && stalker==0 && sentry==0 )
                break;


            System.out.println(totalpw(minerals, gas, zealot, stalker, sentry));
        }
    }

    public static int totalpw(int min, int gas, int z, int st, int se)
    {
        int p1 = 0;
        int p2 = 0;
        int p3 = 0;
        if(mem[min][gas] != -1)
        {
            return mem[min][gas];
        }
        if(min >= 4)
        {
            p1 = z+totalpw(min-4,gas,z,st,se);
        }
        if(min>=5 && gas>=2)
        {
            p2 = st+totalpw(min-5,gas-2,z,st,se);
        }
        if(min>=2 && gas>=4)
        {
            p3 = se+totalpw(min-2,gas-4,z,st,se);
        }
        if(p1 >= p2 && p1 >= p3)
        {
            mem[min][gas] = p1;
        }
        if(p2>=p1&&p2>=p3)
        {
            mem[min][gas] = p2;
        }
        if(p3>=p1&&p3>=p2)
        {
            mem[min][gas] = p3;
        }

        return mem[min][gas];
    }
}