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

package Happy;
import java.io.*;
import java.math.*;
import java.lang.*;
import java.util.*;
import java.util.Arrays.*;
import java.io.BufferedReader;
//import java.io.IOException;
//import java.io.InputStreamReader;
//import java.io.PrintWriter;
//import java.util.StringTokenizer;

/**
 *
 * @author ipoqi
 */
public class Happy {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        new Happy().haha();
    }

    public void haha() {
        BufferedReader in = null;
        BufferedWriter out = null;
        try{
            in = new BufferedReader(new FileReader("C-large.in"));
            out = new BufferedWriter(new FileWriter("LLL.out"));
            int T = Integer.parseInt(in.readLine());
            System.out.println("T="+T);

            //LinkedList<Integer> mm = new LinkedList<Integer>();
            //mm.add(new LinkedList<Integer>());
           //int[][] mm;
           //for(int ii=0;ii<mm.length;ii++){
           //     mm[0][ii] = 1;
           //}


            for(int i=0;i<T;i++){
                String[] line = in.readLine().split(" ");
                int A = Integer.parseInt(line[0]);
                int B = Integer.parseInt(line[1]);
                //System.out.print(" A = "+A+"\n");
                //System.out.print(" B = "+B+"\n");

                int ans = 0;

                
                for(int j=A;j<B;j++){
                    int n=j;
                    if(n>=10){
                        String N = Integer.toString(n);
                        int nlen = N.length();
                        List<Integer> oks = new ArrayList<Integer>();
                        for(int k=0;k<nlen-1;k++){
                            String M = "";
                            for(int kk=1;kk<=nlen;kk++){
                                 M = M + N.charAt((k+kk)%nlen);
                            }
                            int m = Integer.parseInt(M);
                            //System.out.print(" N = "+N+"\n");
                            //System.out.print(" M = "+M+"\n");

                            if(m>n && m<=B) {
                                boolean isNewOne = true;
                                for(int kkk=0;kkk<oks.size();kkk++){
                                    //System.out.print(" KKK = "+oks.get(kkk)+"\n");
                                    if(m==oks.get(kkk)){
                                        isNewOne = false;
                                    }
                                }
                                if(isNewOne){
                                    //System.out.print(" N = "+N+"\n");
                                    //System.out.print(" M = "+M+"\n");
                                    oks.add(m);
                                    ans++;
                                }
                            }
                        }
                    }
                }
                out.write("Case #"+(i+1)+": "+ans+"\n");
                System.out.print("Case #"+(i+1)+": "+ans+"\n");
            }
            in.close();
            out.close();
        }catch(Exception e){
            e.printStackTrace();
            try{
                in.close();
                out.close();
            }catch(Exception e1){
                e1.printStackTrace();
            }
        }
        System.out.print("YES!\n");
    }

}

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
/**
 *
 * @author JOSE
 */
public class RecycledNumbers {

    public void process() {
        ArrayList<String> inputList = readFile("C-large.in");
        String output = "";
        int testCase = 0;
        for (int i = 0; i < inputList.size(); i++) {
            String input = inputList.get(i);
            if (i == 0) {
                testCase = Integer.parseInt(input);
            } else {
                int recycledNo=findRecycledNO(input);
                output = output + "Case #" + i + ": "+recycledNo;
                if (i != (inputList.size() - 1)) {
                    output = output + '\n';
                }
            }
        }
        writeFile(output);
    }

    public int findRecycledNO(String input) {
        String spliInput[] = input.split("\\s");
        int A = Integer.parseInt(spliInput[0]);
        int B = Integer.parseInt(spliInput[1]);
        int n = 0;
        int m = 0;
        int resultCount = 0;
        String[] ab = new String[(B - A) + 1];
        for (int i = 0; i < ab.length; i++) {
            ab[i] = "" + (A + i);
        }
        for (String t : ab) {
            n = Integer.parseInt(t);
            for (int i = 0; i < t.length() - 1; i++) {
                t = t.substring(t.length() - 1) + t.substring(0, t.length() - 1);
                m = Integer.parseInt(t);
                if ((A <= n) && (n < m) && (m <= B)) {
                    //    System.out.println(A + " < " + n + " < " + m + " < " + B);
                    resultCount++;
                }

            }
            //  System.out.println(t);
        }

        return resultCount;
    }

    private ArrayList<String> readFile(String fileName) {

        BufferedReader br = null;
        ArrayList<String> inputList = null;
        try {
            File file = new File(fileName);
            br = new BufferedReader(new FileReader(file));
            String message = null;
            inputList = new ArrayList<String>();
            while ((message = br.readLine()) != null) {
                inputList.add(message);
            }
        } catch (IOException ex) {
            ex.printStackTrace();
        } finally {
            try {
                br.close();
            } catch (IOException ex) {
                ex.printStackTrace();
            }
            return inputList;
        }
    }

    private void writeFile(String message) {
        BufferedWriter bw = null;
        try {
            File file = new File("Output.txt");
            bw = new BufferedWriter(new FileWriter(file));
            bw.write(message);
        } catch (IOException ex) {
            ex.printStackTrace();
        } finally {
            try {
                bw.close();
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        }
    }

    public static void main(String[] args) {
        RecycledNumbers rn = new RecycledNumbers();
        rn.process();
    }
}
