SumDigits1

using System;

namespace Zerotest
{
	class Program
	{
		static void Main(string[] args)
		{
			int firstInteger = int.Parse(Console.ReadLine());
			int secondInteger = int.Parse(Console.ReadLine());
			int thirdInteger = int.Parse(Console.ReadLine());
			int fourthInteger = int.Parse(Console.ReadLine());
			int sumFirstSecond = firstInteger + secondInteger;
			int sumDivided = sumFirstSecond / thirdInteger;
			int sumMultiplied = sumDivided * fourthInteger;
			Console.WriteLine("The result is: + " + sumMultiplied);

		}
	}
}