/*
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 * 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.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashSet;

/**
 * Apr 14, 2012Â 
 * @author parisel
 * GGJ - Qualification Round
 */
public class C {
    private static final int TEST= 0, SMALL= 1, LARGE= 2;
    private static final String[] infile= { "-test.in",  "-small.in",  "-large.in"};
    private static final String[] outfile= {"-test.out", "-small.out", "-large.out"};
    java.io.BufferedReader br;
    java.io.PrintWriter out;
    int N;
    String[] tok;

    private String[] getTok() throws IOException {return br.readLine().split(" ");}
    private int getInt() throws IOException {return Integer.valueOf(br.readLine());}
    private int[] getInt(int N) throws IOException {
        int[] data= new int[N]; tok= br.readLine().split(" ");
        for (int i=0; i<N; i++) data[i]= Integer.valueOf(tok[i]);
        return data;
    }
    private int toInt(String s) { return Integer.valueOf(s); }



    int A, B;
    int cn;
    private long answer() {
        int n, m;
        long count= 0;

        for (n=A; n<=B; n++)
            count+= reclycled(n);
        return count;
    }

    int[] div= {1, 10, 100, 1000, 10000, 100000, 1000000};
    HashSet<Integer> hs= new HashSet<Integer>();
    private int reclycled(int n) {
        int m, count= 0;
        for (int i=1; i<cn; i++) {
            m= (n/div[i]) + (n%div[i])*div[cn-i];
            if (m>n && m<=B && hs.add(m))  {
                ++count;
//                System.out.printf("%d -> %d\n", n, m);
            }
        }
        hs.clear();
        return count;
    }

    public void solve() throws IOException {
        int i,j,k;
        String s;

        int MODE= SMALL;
        br = new BufferedReader (new FileReader("C"+infile[MODE]));
        out = new PrintWriter(new BufferedWriter(new FileWriter("C"+outfile[MODE])));

        int C= Integer.valueOf(br.readLine());
        for (int c=1; c<=C; c++) {
            // read
            tok= getTok();
            A= toInt(tok[0]);
            B= toInt(tok[1]);
            cn= tok[0].length();
            // output
            out.printf("Case #%d: %d\n", c, answer());
        }
        out.close();
    }

    public static void main(String[] args) throws IOException {
        new C().solve();
    }
}
