/*
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 * and open the template in the editor.
 */
package gcj;

import java.io.File;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.Scanner;

/**
 *
 * @author daniele
 */
public class GCJ_C {
    
    public static void main(String[] args) throws Exception{
        
        
        
        Scanner in = new Scanner(new File(args[0]));
        FileWriter out = new FileWriter("/home/daniele/Scrivania/Output");
        

        int prove=in.nextInt();
        int min,max;
        int cifre;
        int cifreaus;
        String temp;
        int aus;
        int count=0;
        ArrayList<Integer> vals = new ArrayList<Integer>();
        int jcount=0;
        ArrayList<Integer> perm = new ArrayList<Integer>();
        
        out.write("");
        out.flush();
        
        for(int i=1;i<=prove;i++){
            
            out.append("Case #" +i+": ");out.flush();
            
            min=in.nextInt();
            max=in.nextInt();
            
            for(int j=min;j<=max;j++){
               if(!vals.contains(j)){
                    temp=""+j;
                    cifre=temp.length();
                    aus=j;
                    perm.add(j);
                    for(int k=1;k<cifre;k++){
                        aus=rotateOnce(aus);
                        temp=""+aus;
                        cifreaus=temp.length();//elusione zeri iniziali
                        if(aus>=min && aus<=max && aus!=j && cifreaus==cifre && nobody(vals,perm)){ 
                            perm.add(aus);
                            jcount ++;
                            
                        }
                        
                    }
                    while(jcount>0){count+=jcount; jcount--;}
                    vals.addAll(perm);
                    perm= new ArrayList<Integer>();
                    
                }
            }
            out.append(count+"\n");out.flush();
            count=0;
            vals= new ArrayList<Integer>();
        }
        
        
        
    }
        static public int rotateOnce(int n){
            String s=""+n;
            if(s.length()>1){
                s=s.charAt(s.length()-1) + s.substring(0,s.length()-1);
                n=Integer.parseInt(s);
            }
            return n;
        }    
        
        static public boolean nobody(ArrayList<Integer> v,ArrayList<Integer> a){;
            for(int i=0;i<a.size();i++)
                if(v.contains(a.get(i))) return false;
            return true;
        } 
    
}


import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;
import java.util.StringTokenizer;


public class G2 
{
	 private Scanner reader;
	 private FileWriter fstream;
	 private BufferedWriter out;
	 String nextline;
	 int noLines;
	 int intA;
	 int intB;
	 int lineIndex=1;
	 int value=0;
	 
	 
	 public boolean isValid(int n,int m)
	 {
		 return (!(n==m)&&(intA<=n)&&(n<m)&&(m<=intB));
		 	
	 }
	 public void initiateFiles()
	{
			try 
			{
				
				reader = new Scanner(new File("src/resources/inb.in"));
				String nextline = reader.nextLine();
				noLines = new Integer(nextline);
				System.out.println(noLines);
				fstream = new FileWriter("out.txt");
				out = new BufferedWriter(fstream);
				
				process();
				out.close();
				
			}
			catch (Exception e) {
				// TODO: handle exception
			}
	}
	 public void process() throws IOException
	 {
		 while (reader.hasNext()) 
		{
			 	value=0;
			 	nextline = reader.nextLine();
			 	System.out.println("Case #"+(lineIndex)+": ");
	            out.write("Case #"+(lineIndex++)+": ");
	            StringTokenizer allwords = new StringTokenizer(nextline);
	            intA= new Integer(allwords.nextToken());
	            intB= new Integer(allwords.nextToken());
	            System.out.println(intA+"    "+intB);
	            
	            int n,m=0;
	            for(n=intA;n<=intB;n++)
	            {
	            	System.out.println(n+"    "+m);
	            	String ns=""+n;
	            	
	            	for(int i=1;i<=ns.length();i++)
	            	{
	            		//System.out.println(i);
	            		String S2=ns.substring(ns.length()-i);
	            		
	            		if(S2.charAt(0)=='0')
	            			continue;
	            		String S1=ns.substring(0,ns.length()-i);
	            		
	            		String ms=S2+S1;
	            		m=new Integer(ms);
	            		//System.out.println(isValid(n, m));
	            		if(isValid(n, m))
	            		{
	            			value++;
	            		}
	            		
	            	}
	            }
	            out.write(value+"\n");
	            

	       }
	 }
	 
	public static void main(String []args)
	{
		G2 obj=new G2();
		obj.initiateFiles();
		
		
		
	}

}
