/*
 * 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.DataInputStream;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.HashSet;

public class Main {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		FileInputStream fstream = null;

		try {
			fstream = new FileInputStream(args[0]);
			//fstream = new FileInputStream("input.txt");
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			System.out.println("Input File Not Found.");
			System.exit(1);
		}

		DataInputStream in = new DataInputStream(fstream);
		BufferedReader br = new BufferedReader(new InputStreamReader(in));

		int lines = 0;

		try {
			lines = Integer.parseInt(br.readLine());
		} catch (NumberFormatException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
		BufferedWriter out = null;
		
		try {
			// Create file
			FileWriter outstream = new FileWriter("output.txt");
			out = new BufferedWriter(outstream);
			
		} catch (Exception e) {// Catch exception if any
			System.err.println("Error: " + e.getMessage());
		}

		String line[] = null;
		Integer numberA;
		Integer numberB;
		String sN;
		String sM;
		int m;


		for (int i = 1; i <= lines; i++) {
			try {
				line = br.readLine().split("\\s+");
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			numberA = Integer.parseInt(line[0]);
			numberB = Integer.parseInt(line[1]);
			String parte1;
			String parte2;

			//System.out.println("Number A is " + numberA + " and number B is "
			//		+ numberB);

			int counter = 0;
			for (int n = numberA; n < numberB; n++) {

				sN = Integer.toString(n); // Aqui temos o número n (n,m)

				HashSet<Integer> respostas = new HashSet<Integer>();

				for (int pos = (sN.length() - 1); pos >= 0; pos--) {
					parte1 = sN.substring(pos);
					parte2 = sN.substring(0, pos);

					sM = parte1.concat(parte2); // Transformado
					m = Integer.parseInt(sM);

					if (numberA <= n && n < m && m <= numberB) {
						// System.out.println(sNumberA + " <= " + n + " < " + m
						// + " <= " + sNumberB);
						// counter++;
						respostas.add(m);
					}

				}
				counter += respostas.size();
			}

			System.out.println("Case #" + i + ": " + counter);
			try {
				out.write("Case #" + i + ": " + counter + "\n");
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}

		}



		try {
			out.close();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

}
