using Yorukatsu026.Questions;
using Yorukatsu026.Extensions;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;

namespace Yorukatsu026.Questions
{
    /// <summary>
    /// ABC095 C
    /// </summary>
    public class QuestionB : AtCoderQuestionBase
    {
        public override IEnumerable<object> Solve(TextReader inputStream)
        {
            var abcxy = inputStream.ReadIntArray();
            var aPrice = abcxy[0];
            var bPrice = abcxy[1];
            var abPrice = abcxy[2];
            var aNeeded = abcxy[3];
            var bNeeded = abcxy[4];

            var aCount = 0;
            var bCount = 0;
            var abCount = 0;

            if (aPrice + bPrice <= 2 * abPrice)
            {
                aCount = aNeeded;
                bCount = bNeeded;
            }
            else
            {
                abCount = 2 * Math.Min(aNeeded, bNeeded);

                if (aNeeded > abCount / 2 && aPrice < 2 * abPrice)
                {
                    aCount = aNeeded - abCount / 2;
                }
                else if (bNeeded > abCount / 2 && bPrice < 2 * abPrice)
                {
                    bCount = bNeeded - abCount / 2;
                }
                else
                {
                    abCount = 2 * Math.Max(aNeeded, bNeeded);
                }
            }

            yield return aPrice * aCount + bPrice * bCount + abPrice * abCount;
        }
    }
}


namespace Yorukatsu026
{
    class Program
    {
        static void Main(string[] args)
        {
            IAtCoderQuestion question = new QuestionB();    // 問題に合わせて書き換え
            var answers = question.Solve(Console.In);
            foreach (var answer in answers)
            {
                Console.WriteLine(answer);
            }
        }
    }
}

#region Base Classes

namespace Yorukatsu026.Questions
{

    public interface IAtCoderQuestion
    {
        IEnumerable<object> Solve(string input);
        IEnumerable<object> Solve(TextReader inputStream);
    }

    public abstract class AtCoderQuestionBase : IAtCoderQuestion
    {
        public IEnumerable<object> Solve(string input)
        {
            var stream = new MemoryStream(Encoding.Unicode.GetBytes(input));
            var reader = new StreamReader(stream, Encoding.Unicode);

            return Solve(reader);
        }

        public abstract IEnumerable<object> Solve(TextReader inputStream);
    }

}

#endregion

#region Extensions

namespace Yorukatsu026.Extensions
{
    internal static class TextReaderExtensions
    {
        internal static int ReadInt(this TextReader reader) => int.Parse(ReadString(reader));
        internal static long ReadLong(this TextReader reader) => long.Parse(ReadString(reader));
        internal static double ReadDouble(this TextReader reader) => double.Parse(ReadString(reader));
        internal static string ReadString(this TextReader reader) => reader.ReadLine();

        internal static int[] ReadIntArray(this TextReader reader, char separator = ' ') => ReadStringArray(reader, separator).Select(int.Parse).ToArray();
        internal static long[] ReadLongArray(this TextReader reader, char separator = ' ') => ReadStringArray(reader, separator).Select(long.Parse).ToArray();
        internal static double[] ReadDoubleArray(this TextReader reader, char separator = ' ') => ReadStringArray(reader, separator).Select(double.Parse).ToArray();
        internal static string[] ReadStringArray(this TextReader reader, char separator = ' ') => reader.ReadLine().Split(separator);
    }
}

#endregion

Measured memory_bytes: 13396