package Main;

import com.sun.deploy.util.ArrayUtil;
import org.apache.commons.lang3.ArrayUtils;

import java.io.*;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;

/**
 * Created with IntelliJ IDEA.
 * User: arran
 * Date: 14/04/12
 * Time: 3:12 PM
 * To change this template use File | Settings | File Templates.
 */
public class Round {
    public StringBuilder parse(BufferedReader in) throws IOException {
        StringBuilder out = new StringBuilder();
        String lineCount = in.readLine();

        for (int i = 1; i <= Integer.parseInt(lineCount); i++)
        {
            out.append("Case #"+i+": ");
            System.err.println("Case #"+i+": ");
            String line = in.readLine();
            String[] splits = line.split(" ");
            int p1 = Integer.valueOf(splits[0]);
            int p2 = Integer.valueOf(splits[1]);
            int r = pairRecyclable(p1, p2);
            out.append(r);

//            if (i < Integer.parseInt(lineCount))
                out.append("\n");
        }
        return out;
    }

    public static int pairRecyclable(int i1, int i2) {
        HashSet<String> hash = new HashSet<String>();
        for (int i = i1; i < i2; i++)
        {
            String istr = String.valueOf(i);
            if (istr.length() < 2) continue;
            for (int p = 0; p < istr.length() ; p++)
            {
                String nistr = istr.substring(p,istr.length()).concat(istr.substring(0,p));
                if (Integer.valueOf(nistr) < i1) continue;
                if (Integer.valueOf(nistr) > i2) continue;
                if (nistr.equals(istr)) continue;
                String cnistr = (Integer.valueOf(nistr) > Integer.valueOf(istr)) ?  istr + "," + nistr : nistr + "," + istr;
                hash.add(cnistr);
            }
        }
        return hash.size();
    }

    public static void main(String[] args) {
        InputStreamReader converter = null;
        try {
            int attempt = 0;
            String quest = "C";
//            String size = "small-attempt";
            String size = "large";
            converter = new InputStreamReader(new FileInputStream("src/resource/"+quest+"-"+size+".in"));
            BufferedReader in = new BufferedReader(converter);
            Round r = new Round();
            String str = r.parse(in).toString();
            System.out.print(str);
            FileOutputStream fos = new FileOutputStream(quest+"-"+size+".out");
            OutputStreamWriter osw = new OutputStreamWriter(fos);
            BufferedWriter bw = new BufferedWriter(osw);
            bw.write(str);
            bw.flush();
            bw.close();
        } catch (IOException e) {
            e.printStackTrace();
        }

    }
}

import java.util.*;
import java.io.*;
import java.math.*;

public class Prac3 {
	public static String shift(String i){
		String num=i;
		String num2=num.substring(num.length()-1,num.length())+num.substring(0,num.length()-1);
		return num2;
	}
	public static boolean rec(Integer a, int b){
		Integer original=a;
		
		
		
		return false;
	}
	public static void main(String[] arg){
		try{
			Scanner in=new Scanner(new File("sample"));
			//BufferedReader br=new BufferedReader(new FileReader("sample"));
			//int numCases=in.nextInt();//br.readLine();br.readLine();
		//	BufferedWriter bw=new BufferedWriter(new FileWriter("output.txt"));
			int numCases=in.nextInt();
			int counter=1;
			//in.nextLine();
			counter=1;
			while (counter!=numCases+1){
				Integer A=in.nextInt();
				Integer B=in.nextInt();
				ArrayList<Integer> track=new ArrayList<Integer>();
				if (B.toString().length()<2){
					System.out.println("Case #"+counter+": "+0);
				}else{
					for (Integer i=A;i<=B;i++){
						Integer original=i;
						String marker=shift(original.toString());
				
						while (!(marker.equals(original.toString()))){
							//System.out.println(marker+ " " +original);
							if (Integer.parseInt(marker)>original 
									&& Integer.parseInt(marker)<=B 
									){//&& !(track.contains(marker))
								track.add(Integer.parseInt(marker));
								track.add(original);
							//	marker=original.toString();
								marker=shift(marker);
							}else{
								marker=shift(marker);
							}
						    //System.out.println(marker==original);
							
						}
					}
					System.out.println("Case #"+counter+": "+track.size()/2);
				}
				
				
				counter++;
			}
		
		}catch (FileNotFoundException e){
			
		}catch (IOException e){
		}
	}
}