// editor2
import java.util.Scanner;
public class Main
{
    public static void main(String[]args)
    {
        Scanner sc=new Scanner(System.in);
        String s=sc.nextLine();
        for(int i=0;i<s.length;i++)
        {
            System.out.print(i.length());
        }
        if(sc.hasNextLine())
        {
            System.out.print("Invalid input");
            return;
        }
        
    }
}