using System;

using System.Linq;

​

public class Program

{

    public static void Main()

    {

        int a = int.Parse(Console.ReadLine());

        int b = int.Parse(Console.ReadLine());

        int c = int.Parse(Console.ReadLine());

        int n, l;

        int guess = 0;

        for(n = 999; b < n; n--)

        {

            if (n % b == 0)

            {

                break;

            }

        }

        for (l = 1000; l > c; l++)

        {

            if(l % c == 0)

            {

                guess = a + n + l;

                break;

            }

        }

        Console.WriteLine(guess);

​

​

    }

}