package spoj;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
//import java.util.Scanner;
import java.util.StringTokenizer;

public class ACODE {
	
	static class FastReader
    {
        BufferedReader br;
        StringTokenizer st;
 
        public FastReader()
        {
            br = new BufferedReader(new
                     InputStreamReader(System.in));
        }
 
        String next()
        {
            while (st == null || !st.hasMoreElements())
            {
                try
                {
                    st = new StringTokenizer(br.readLine());
                }
                catch (IOException  e)
                {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        }
 
        int nextInt()
        {
            return Integer.parseInt(next());
        }
 
        long nextLong()
        {
            return Long.parseLong(next());
        }
 
        double nextDouble()
        {
            return Double.parseDouble(next());
        }
 
        String nextLine()
        {
            String str = "";
            try
            {
                str = br.readLine();
            }
            catch (IOException e)
            {
                e.printStackTrace();
            }
            return str;
        }
    }
	
	public static int recursive (String s)
	{
		if (s.length()==1)
			{
			if (s.charAt(0)!='0')
				return 1;
			if (s.charAt(0)=='0')
				return 0;
			}
		if (s.length()==2)
		{
			int m = stringToInt(s);
			if (m>=10 && m<=26)
			{
			if (s.charAt(1)!='0')
				return 2;
			if (s.charAt(1)=='0')
				return 1;
			}
			if (m<10 && m>26)
				return 0;
		}
		int m = stringToInt(s.substring(0, 2));
		if (m<10)
			return 0;
		if (m>=10 && m<=26)
			return recursive(s.substring(1))+recursive(s.substring(2));
		return recursive(s.substring(1));
	}
	
	public static int stringToInt(String s)
	{
		int numberAtTens = (int)(s.charAt(0))-48;
		int numberAtOnes = (int)(s.charAt(1))-48;
		return (10*numberAtTens)+numberAtOnes;
	}

	public static void main(String[] args){
		// TODO Auto-generated method stub
		FastReader s=new FastReader();
		String input=s.next();
		while(!input.equals("0"))
		{
		System.out.println(recursive(input));
		input = s.next();
		if (input.equals("0"))
			break;
		}
	}

}