using System;

public class Program

{

    public static void Main()

    {

        int i = 345669;

        int k = 0;

        int m = 0;

        for (int j=1000000; j>=10; j=j/10) {

            if (i/j>=1) {

                for(k=j; k>=10; k=k/10) {

                    m=i/k + m;}}}

                Console.WriteLine(m);

    }

}