/*
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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.util.*;
import java.util.regex.*;
import java.text.*;
import java.math.*;
import java.awt.geom.*;
import java.io.*;

public class cx{
	public static void main(String[] args){
		try{			
			File output;
			FileWriter outputwriter;
			BufferedWriter out;
			String filename = "bx.out";
			
			output = new File(filename);
			outputwriter = new FileWriter(output);
			out = new BufferedWriter(outputwriter);
			
			//System.out.println("siap");
			//out.write("ardhianvv\nll");
			BufferedReader f = new BufferedReader(new FileReader("a.in"));
			StringTokenizer st = new StringTokenizer(f.readLine());			
			int angka = Integer.parseInt(st.nextToken());
			for(int a=0;a<angka;a++){
				st = new StringTokenizer(f.readLine());
				String hh[] = st.nextToken("\n").split(" ");
				int aa = Integer.parseInt(hh[0]);
				int bb = Integer.parseInt(hh[1]);
				int hasil =0;
				HashSet<String>jkl = new HashSet<String>();
				for(int b=aa;b<=bb;b++){
					String as = ""+b;
					//if(a==3)
					//System.out.println("- "+as);
					int len = as.length();					
					for(int c=0;c<as.length()-1;c++){
						if(as.charAt(len-1-c)<as.charAt(0)){
							continue;
						}
						int gg = Integer.parseInt(""+as.substring(len-1-c,len)+as.substring(0,len-1-c));						
						if(gg>b && gg<=bb){
							//if(a==3)
								//System.out.println((hasil+1)+ " "+b+" "+gg);
							jkl.add(b+" "+gg);
							//hasil++;
						}
					}
				}
				//System.out.println(jkl.size());
				if(a!=angka-1)					
					out.write("Case #"+(a+1)+": "+jkl.size()+"\n");
				else
					out.write("Case #"+(a+1)+": "+jkl.size());
			}
			out.close();
		} catch(Exception cc){
			System.out.println(cc.toString());
		}
	}
}