/*
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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.BufferedInputStream;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;


public class Main2 {
	private static final String IN_FILE = "in.txt";
	private static final String OUT_FILE = "out.txt";
	
	private static List<Xxx> parseFile() throws IOException  {
		BufferedReader r = new BufferedReader(new InputStreamReader(new FileInputStream(IN_FILE)));
		
		int count = Integer.parseInt(r.readLine());
		List<Xxx> res = new ArrayList<Xxx>();
		for(int i = 0; i < count; i++){
			String line = r.readLine();
			String[] tupel = line.split(" ");
			Xxx d = new Xxx();
			d.min = Integer.parseInt(tupel[0]);
			d.max = Integer.parseInt(tupel[1]);
			
			res.add(d);
		}
		r.close();
		
		return res;
	}
	
	private static List<Integer> process(List<Xxx> dl){
		List<Integer> res = new ArrayList<Integer>();
		
		for(Xxx d : dl){
			int count = 0;
			
//			System.out.println("-----------------------------------------");
			List<String> xxx = new ArrayList<String>();
			for(int x = d.min; x < d.max; x++){
				String sx_orig = String.valueOf(x);
				int len = sx_orig.length();
				String sy = null;
				xxx.clear();
				
				if(len > 1){
					for(int y = x + 1; y <= d.max && (sy = String.valueOf(y)).length() == len; y++){
						String sx = sx_orig;
						
						for(int i = 1; i < sx.length(); i++){
							char c = sx.charAt(sx.length()-1);
							sx = c  + sx.substring(0, sx.length() - 1);
							
							if(sx.equals(sy)){
								
								if(!xxx.contains(sx)){
									xxx.add(sx);
//									System.out.println(sx_orig +"\t" +sx);
									count++;
									continue;
								}
							}
						}
					}
				}
			}
			
			res.add(count);
		}
		
		return res;
	}
	
	private static void writeOutput(List<Integer> data) throws IOException {
		BufferedWriter w = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(OUT_FILE)));
		
		for(int i = 0; i < data.size(); i++){
			if(i > 0){
				w.write("\n");
			}
			
			String s = "Case #" +(i+1) +": " +data.get(i);
			w.write(s);
		}
		w.close();
	}
	
	/**
	 * @param args
	 * @throws IOException 
	 */
	public static void main(String[] args) throws IOException {
		List<Xxx> l = parseFile();
		List<Integer> r = process(l);
		writeOutput(r);
		
		System.out.println("Done");
	}
	
	private static class Xxx {
		public int min;
		public int max;
	}
}