import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;


public class GoogleC {
	public String szamol(String input){
		String result="";
		String a=input;
		Integer min=Integer.parseInt(a.substring(0,a.indexOf(' ')));
		a=a.substring(a.indexOf(' ')+1);
		Integer max=Integer.parseInt(a);
		Long count=0l;
		for(Integer i=min; i<=max; i++){
			String e1=i.toString();
			Set<Integer> db=new HashSet<Integer>(); 
			for (int j=1; j<e1.length();j++){
				
				String e2=e1.substring(j)+e1.substring(0,j);
				Integer k=Integer.parseInt(e2);
				if (k>i && k<=max){
					db.add(k);
					//System.out.println(e1+"\t"+e2);
				}
				
			}
			count+=db.size();
		}
		
		return count.toString();
	}
	public static void main(String[] args) {
		GoogleC a=new GoogleC();
		//String filename="input.txt";
		//String filename="C-small-attempt0.in";
		String filename="C-large.in";
		String thisLine;
		try {
			BufferedReader br = new BufferedReader(new FileReader(filename));
			BufferedWriter bw= new BufferedWriter(new FileWriter(filename+".out"));
			thisLine=br.readLine();
			Integer tnum=Integer.parseInt(thisLine);
		     for(int i=0;i<tnum;i++) { // while loop begins here
		    	 	thisLine=br.readLine();
		           System.out.println(thisLine);
		           System.out.println("Case #"+(i+1)+": "+a.szamol(thisLine)+"\n");
		           bw.write("Case #"+(i+1)+": "+a.szamol(thisLine)+"\n");
		         } // end while 
		        // end try
		     br.close();
		     bw.close();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}


	}

}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

/**
 *
 * @author Saransh
 */
import java.io.*;
import java.util.*;
import java.math.*;
import java.lang.*;


public class Main {

    static int pts[];
    static int n,s,p;
    static int memo[][];
    static boolean marked[][];
    public static void main(String[] args)
    {
        try
        {
            Scanner sc=new Scanner(System.in);
            int t=sc.nextInt();
			int test=1;
            while(t-->0)
            {
                int A=sc.nextInt();
				int B=sc.nextInt();
				int count=0;
				for(int i=A;i<=B;i++)
				{
					String str=i+"";
					HashSet<Integer> set=new HashSet<Integer>();
					for(int i1=0;i1<=str.length();i1++)
					{
						String tmp=str.substring(i1)+str.substring(0,i1);
						if(tmp.charAt(0)!='0')
						{
							int temp=Integer.parseInt(tmp);
							if(temp>i&&temp<=B&&!set.contains(temp))
							{
								set.add(temp);
								count++;
							}	
						}
					}
				}
				System.out.println("Case #"+test+": "+count);
				test++;
            }
        }
        catch(Exception e)
        {
            e.printStackTrace();
        }
    }
    

}


