using Yorukatsu056.Questions;
using Yorukatsu056.Extensions;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;

namespace Yorukatsu056.Questions
{
    /// <summary>
    /// https://atcoder.jp/contests/abc095/tasks/arc096_a
    /// </summary>
    public class QuestionB : AtCoderQuestionBase
    {
        public override IEnumerable<object> Solve(TextReader inputStream)
        {
            var abcxy = inputStream.ReadIntArray();
            var aCost = abcxy[0];
            var bCost = abcxy[1];
            var abCost = abcxy[2];
            var aNeeded = abcxy[3];
            var bNeeded = abcxy[4];

            if (aCost + bCost <= 2 * abCost)
            {
                yield return aCost * aNeeded + bCost * bNeeded;
            }
            else
            {
                var totalCost = 0;
                var minAB = Math.Min(aNeeded, bNeeded);
                totalCost += 2 * minAB * abCost;
                aNeeded -= minAB;
                bNeeded -= minAB;

                if (aNeeded > 0)
                {
                    totalCost += Math.Min(aCost, 2 * abCost) * aNeeded;
                }

                if (bNeeded > 0)
                {
                    totalCost += Math.Min(bCost, 2 * abCost) * bNeeded;
                }

                yield return totalCost;
            }
        }
    }
}


namespace Yorukatsu056
{
    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 Yorukatsu056.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 Yorukatsu056.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