import java.text.*;
import java.io.*;
import java.util.*;
 
public class Test{
 
    public Test(){
        init();
        test();
    }
    
    public static void main(String[] args){
        new Test();
    }
    
    public void init(){
    
    }
    
    public void test(){
        String s = getInput();
        while (s.length() > 6){
            /* chop off left end */
            s = s.substring(1);
            /* chop off right end */
            //s = s.substring(0,s.length()-1);
        }
        long n = toLong(s);
        if (n != -1){
            System.out.println("six digit number: " + String.valueOf(n));
        }else{
            System.out.println("That was not a valid a six digit digit number");
        }
    }
    
    public String getInput(){
        String input = "";
        try{
            InputStreamReader isr = new InputStreamReader(System.in);
            BufferedReader br = new BufferedReader(isr);
            System.out.println("Enter a six digit digit number");
            input = br.readLine(); 
        }catch(IOException ioe){
            System.err.println("IOException: " + ioe.getMessage());
        }
        return input;
    }
    
    /** String to long. Returns -1 if string is not properly formatted. */
    private long toLong(String s){
        long n = -1;
        try{
            n = Long.parseLong(s);
        }catch(NumberFormatException nfe){
            System.err.println("NumberFormatException: " + nfe.getMessage());
        }
        return n;
    }
    
    /** long to String. */
    private String toString(long n){
        return String.valueOf(n);
    }
 
    
 
}  return n;
    }
    

public class Test{    
 
    public int MAX_NUMBER_OF_DIGITS = 8;
 
    public static void main(String[] args){        
 
        if (args.length != 1){
            System.out.println("You will have to call this class with exactly one argument, sorry!");
        }
        try{
            long theResultLong = getTrimmedLong(args[0]);
            System.out.println("We found the long " + theResultLong);
        } catch (NumberFormatException ex){
            System.out.println("This (" + args[0] + ") is not a long at all!!");
        }
    }
 
    public static long getTrimmedLong(String longAsString){
 
        if (longAsString.length() > MAX_NUMBER_OF_DIGITS){
            System.out.println("This (" + longAsString + ") is too big, let's trim it to " + MAX_NUMBER_OF_DIGITS + " digits");
            longAsString = longAsString.substring(0, MAX_NUMBER_OF_DIGITS > 1);
            System.out.println("The result of trimming is " + longAsString);
        }
        return Long.parseLong(longAsString); 
    }
}