/*
 * 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.*;

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

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        Scanner cin = new Scanner(System.in);

        List<Integer> integers = new ArrayList<>();
        int a = Integer.parseInt(cin.nextLine());
        int[] begin = new int[a];
        int[] end = new int[a];

        int value, value2, count;
        boolean aux;
        String number;
        for (int i = 0; i < a; i++) {
            integers.clear();
            count = 0;
            begin[i] = cin.nextInt();
            end[i] = cin.nextInt();
            for (int j = begin[i]; j <= end[i]; j++) {



                if (j >= 10) {
                    if (j < 100) {
                        number = j + "";
                        value = Integer.parseInt(number.charAt(1) + "" + number.charAt(0));
                        aux = true;
                        for (Integer ii : integers) {
                            if (ii.intValue() == value) {
                                aux = false;
                                break;
                            }
                        }
                        if (aux && value != j && number.charAt(1) != '0' && begin[i] <= value && value <= end[i]) {
                            integers.add(j);
                            count++;
                        }
                    } else if (j <= 1000) {
                        number = j + "";
                        value = Integer.parseInt(number.charAt(2) + "" + number.charAt(0) + "" + number.charAt(1));
                        value2 = Integer.parseInt(number.charAt(1) + "" + number.charAt(2) + "" + number.charAt(0));
                        aux = true;
                        for (Integer ii : integers) {
                            if (ii.intValue() == value) {
                                aux = false;
                                break;
                            }
                        }
                            
                        if (aux && value != j && 100 <= value && begin[i] <= value && value <= end[i]) {
                            integers.add(j);
                           count++;
                        }
                          
                        aux = true;
                        for (Integer ii : integers) {
                            if (ii.intValue() == value2) {
                                aux = false;
                                break;
                            }
                        }
                        if (aux && value2 != j && 100 <= value2 && begin[i] <= value2 && value2 <= end[i]) {
                            integers.add(j);
                            count++;
                        }
                    }

                }
            }


            System.out.println("Case #"+(i+1)+":"+count);
        }




    }
}