package codejam;

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

public class RecycledNumbers {
	public static void main(String[] args) throws IOException {
		BufferedReader in = new BufferedReader(new FileReader("in.txt"));
		PrintWriter out = new PrintWriter(new File("out.txt"));
		
		int T = Integer.parseInt(in.readLine());
		for (int t = 1; t <= T; ++t) {
			String[] parts = in.readLine().split("[ ]+");
			int A = Integer.parseInt(parts[0]);
			int B = Integer.parseInt(parts[1]);
			
			int cnt = 0;
			for (int i = A; i < B; ++i) {
				String str = String.valueOf(i);
				int n = str.length();
				String res = "";
				Set<Integer> seen = new HashSet<Integer>();
				for (int j = n - 1; j > 0; --j) {
					res = str.substring(j) + str.substring(0, j);
					int k = Integer.parseInt(res);
					if (k > i && k <= B) {
						//System.out.println("(" + i + ", " + k + ")");
						if (!seen.contains(k)) {
							++cnt;
							seen.add(k);
						}
					}
				}
			}

			out.println("Case #" + t + ": " + cnt);
		}
		
		in.close();
		out.close();
		System.exit(0);
	}
}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package gcj12_qc;

import java.io.FileOutputStream;
import java.util.HashSet;
import java.util.Scanner;

/**
 *
 * @author youssefgamil
 */
public class Gcj12_qC {

    /**
     * @param args the command line arguments
     */
    public static String leading0(String txt)
    {
        while(txt.charAt(0)=='0')
            txt=txt.substring(1);
        return txt;
    }
    public static void main(String[] args) throws Exception {
        HashSet<String> hs=new HashSet<String>();
        Scanner sc=new Scanner(System.in);
        FileOutputStream out=new FileOutputStream("out.txt");
        int a,b,i,j,tc,T;
        long res=0;
        String tmp;
        T=sc.nextInt();
        for(tc=1;tc<=T;tc++)
        {
            a=sc.nextInt();
            b=sc.nextInt();
            res=0;
            for(i=a;i<=b;i++)
            {
//                if(hs.contains(i+""))
//                    continue;
                
                tmp=i+"";
                
//                hs.add(tmp);
  //              System.out.println(tmp+">");
                
                hs=new HashSet<String>();
                for(j=0;j<tmp.length();j++)
                {
                        tmp=tmp.substring(1)+tmp.charAt(0);

                        
                    if(!hs.contains(tmp))//+","+i) && !hs.contains(i+","+tmp))
                    {
                            hs.add(tmp);//+","+i);
                        if(a<=Integer.parseInt(tmp)&&Integer.parseInt(tmp)<=b && Integer.parseInt(tmp)!=i)
                        {
//                        System.out.println(i+","+tmp);
                            res++;
                        }
                    }
                }
            }
            res/=2L;
            System.out.print(("Case #"+tc+": "+res+"\n"));
            out.write(("Case #"+tc+": "+res+"\n").getBytes());
        }
        out.close();
        // TODO code application logic here
    }
}
