using System;

class SevenlandNumbers
{
    static void Main()
    {
        string binaryNumber = Console.ReadLine();

        string[] numbers = new string[binaryNumber.Length];

        int position = 0;

        foreach (char element in binaryNumber)
        {
            numbers[position] = element.ToString();
            position++;
        }

        long[] reverseNumbers = new long[numbers.Length];

        int positionReverse = 0;
        for (int index = numbers.Length - 1; index >= 0; index--)
        {
            reverseNumbers[positionReverse] = Int32.Parse((numbers[index]));
            positionReverse++;
        }

        long numberInDecimal = 0;

        for (int index = 0; index < reverseNumbers.Length; index++)
        {
            numberInDecimal += (long)Math.Pow(7, index) * reverseNumbers[index];
        }

        long newNumber = numberInDecimal + 1;
        long result;
        string numberBit = "";

        while (newNumber >= 1)
        {
            result = newNumber / 7;
            numberBit += (newNumber % 7).ToString();
            newNumber = result;
        }

        string reverseNumberBit = "";

        for (int i = numberBit.Length - 1; i >= 0; i--)
        {
            reverseNumberBit += numberBit[i];
        }
        Console.WriteLine("{0}", reverseNumberBit);


    }
}