import java.io.FileInputStream;
import java.util.HashMap;
import java.util.Scanner;
import java.util.TreeSet;

// Recycled Numbers
// https://code.google.com/codejam/contest/1460488/dashboard#s=p2

public class C {

	private static String process(Scanner in) {
		int A = in.nextInt();
		int B = in.nextInt();
		int res = 0;
		int len = Integer.toString(A).length();
		for(int n = A; n < B; n++) {
			String str = Integer.toString(n);
			TreeSet<Integer> set = new TreeSet<Integer>();
			for(int i = 1; i < len; i++) {
				int m = Integer.parseInt(str.substring(i, len) + str.substring(0, i));
				if ( m > n && m <= B && ! set.contains(m) ) {
					set.add(m);
					res++;
				}
			}
		}
		return Integer.toString(res);
	}

	public static void main(String[] args) throws Exception {
		Scanner in = new Scanner(System.in.available() > 0 ? System.in : 
			new FileInputStream(Thread.currentThread().getStackTrace()[1].getClassName() + ".practice.in"));
		int T = in.nextInt();
		for(int i = 1; i <= T; i++) 
			System.out.format("Case #%d: %s\n", i, process(in));
	}
}

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

package codejam;

import java.io.FileNotFoundException;
import java.io.FileReader;
import java.util.ArrayList;
import java.util.*;
import java.util.Scanner;

/**
 *
 * @author Mash
 */
public class Main {
  
  public static void main(String args[]) throws FileNotFoundException {

      Scanner in = new Scanner(new FileReader("C:\\ima\\ans.txt"));
                int T=in.nextInt();
                int A,B;

                String a,b,perm;
                char[] per;

                String filler="0000000";

                for(int i=1;i<=T;i++){
                    int res=0;

                    A=in.nextInt();
                    B=in.nextInt();

                    b=Integer.toString(B);

                    for(int j=A;j<=B;j++){
                        int ans;
                   // Set list= new HashSet<Character[]>();
                     Set<String> list=new HashSet<String>();
                    a=Integer.toString(j);
                    int des=b.length()-a.length();
                    perm=filler.substring(0, des)+j;
                    //System.out.println(perm);
                    //per=perm.toCharArray();
                    //permute(per, 0, b.length());
                    String add;
                    for(int s=0;s<=perm.length();s++){
                        add=perm.substring(s)+perm.substring(0,s);
                        list.add(add);
                    }
                    ans=0;
                    Iterator it=list.iterator();
                    //System.out.println("j is"+j);
                    while(it.hasNext())
                    {
                     String comp=(String) it.next();
                     //System.out.println(comp);
                     int com=Integer.parseInt(comp);
                     if(com>j&&com<=B)ans++;
                      }
                    //System.out.println("answer is"+ans);
                    res+=ans;
                    }
                    System.out.println("Case #"+i+": "+res);
                }
    
  }

}
