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

package recycled;

import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.TreeSet;

/**
 *
 * @author Alfred
 */
public class Main {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
    try {
            FileInputStream fstream = new FileInputStream("C-small-attempt0.in");
            DataInputStream in = new DataInputStream(fstream);
            BufferedReader br = new BufferedReader(new InputStreamReader(in));
            FileWriter outFile = new FileWriter("out.txt");
            PrintWriter out = new PrintWriter(outFile);
            String line;
            line = br.readLine();
            int cases = Integer.parseInt(line);
            for (int i=1; i<=cases;i++){
                line = br.readLine();
                String[] values = line.split(" ");
                int A = Integer.parseInt(values[0]);
                int B = Integer.parseInt(values[1]);
                int total=0;
                for (int n=A; n<=B;n++){
                    TreeSet<String> solutions = new TreeSet<String>();
                    for (int k=1;k<values[1].length();k++){
                        String m = circshift(n,k);
                        int mVal = Integer.parseInt(m);
                        if(mVal<=B && mVal!=n  && mVal> n && !m.startsWith("0") && m.length()==Integer.toString(n).length() )
                        {
                            solutions.add(m);
                        }                   
                    }
                    total+=solutions.size();
                }
                out.println("Case #"+i+": "+total);
            }
            in.close();
            out.close();
        } catch (Exception e) {//Catch exception if any
            System.err.println("Error: " + e.getMessage());
        }

}

    private static String circshift(int n, int k) {
        String nString=Integer.toString(n);
        int len=nString.length();
        String m =  nString.substring(len-k)+nString.subSequence(0, len-k);
        //System.out.println(n+" "+m);
        return m;
    }

}


import java.util.*;
public class C {

	public static void main (String[] args)
	{	
			String bIn;
			Scanner in = new Scanner(System.in);
			
			int T = Integer.parseInt(in.nextLine());
			
			for (int test = 0 ; test < T ; test++)
			{
				String range = in.nextLine();
				String[] cIN = range.split(" ");
				int max = Integer.parseInt(cIN[1]);
				int min = Integer.parseInt(cIN[0]);
				int count = 0;
				for (int findPair = min ; findPair <= max ; findPair ++)
				{
					String thisOne = String.valueOf(findPair);
					
					String[] gothrough = thisOne.split("");
					int digitLength = gothrough.length-1;
					
					int sameTest = Integer.parseInt(thisOne);
					
				//	System.out.println(digitLength);
					
					for (int shuffle1 = 0 ; shuffle1 < digitLength ; shuffle1++)
					{
		
							String temp = thisOne.substring(shuffle1)+thisOne.substring(0,shuffle1);
						//	System.out.println(temp);
							
							int test1 = Integer.parseInt(temp);
							
							if (test1 <= max && test1 >= min && test1 != sameTest)
							{
							//	System.out.println(test1);
							//	System.out.println("( "+thisOne+","+test1+")");
								count++;
							}
			
					}
					
				}
				count = count/2;
				System.out.println("Case #"+(test+1)+": "+count);
			}

	}
	

}