import java.io.*;
import java.util.*;

public class C {

    void solve() throws IOException {
        in("C-large.in"); out("C-large.out");

        long tm = System.currentTimeMillis();
        boolean[] mask = new boolean[2000000];
        int[] r = new int[10];
        int t = readInt();
        for (int cs = 1; cs <= t; ++cs) {
            int a = readInt();
            int b = readInt();
            int ans = 0;
            for (int m = a + 1; m <= b; ++m) {
                char[] d = String.valueOf(m).toCharArray();
                int c = 0;
                for (int i = 1; i < d.length; ++i) {
                    if (d[i] != '0' && d[i] <= d[0]) {
                        int n = 0;
                        for (int j = 0; j < d.length; ++j) {
                            int jj = i + j;
                            if (jj >= d.length) jj -= d.length;
                            n = n * 10 + (d[jj] - '0');
                        }
                        if (n >= a && n < m && !mask[n]) {
                            ++ans;
                            mask[n] = true;
                            r[c++] = n;
                        }
                    }
                }
                for (int i = 0; i < c; ++i) {
                    mask[r[i]] = false;
                }
            }
            println("Case #" + cs + ": " + ans);
            //System.out.println(cs);
        }
        System.out.println("time: " + (System.currentTimeMillis() - tm));
        exit();
    }

    void in(String name) throws IOException {
        if (name.equals("__std")) {
            in = new BufferedReader(new InputStreamReader(System.in));
        } else {
            in = new BufferedReader(new FileReader(name));
        }
    }

    void out(String name) throws IOException {
        if (name.equals("__std")) {
            out = new PrintWriter(System.out);
        } else {
            out = new PrintWriter(name);
        }
    }

    void exit() {
        out.close();
        System.exit(0);
    }

    int readInt() throws IOException {
        return Integer.parseInt(readToken());
    }

    long readLong() throws IOException {
        return Long.parseLong(readToken());
    }

    double readDouble() throws IOException {
        return Double.parseDouble(readToken());
    }

    String readLine() throws IOException {
        st = null;
        return in.readLine();
    }

    String readToken() throws IOException {
        while (st == null || !st.hasMoreTokens()) {
            st = new StringTokenizer(in.readLine());
        }
        return st.nextToken();
    }

    boolean eof() throws IOException {
        return !in.ready();
    }

    void print(String format, Object ... args) {
        out.println(new Formatter(Locale.US).format(format, args));
    }

    void println(String format, Object ... args) {
        out.println(new Formatter(Locale.US).format(format, args));
    }

    void print(Object value) {
        out.print(value);
    }

    void println(Object value) {
        out.println(value);
    }

    void println() {
        out.println();
    }

    StringTokenizer st;

    BufferedReader in;
    PrintWriter out;

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

import java.io.*;
import java.util.Scanner;

/**
 * Created by IntelliJ IDEA.
 * User: tanin
 * Date: 4/14/12
 * Time: 9:54 AM
 * To change this template use File | Settings | File Templates.
 */
public class Recycled {


    public static void main(String[] args) throws Exception {

        String filename = "Recycled/large";
        String outFilename = filename + "_out";

        FileInputStream fis = new FileInputStream(new File(filename));
        Scanner input = new Scanner(new BufferedInputStream(fis));

        FileOutputStream fOut = new FileOutputStream(new File(outFilename));
        BufferedOutputStream bOut = new BufferedOutputStream(fOut);
        DataOutputStream out = new DataOutputStream(bOut);

        int numCases = input.nextInt();
        input.nextLine();

        for (int caseNumber=0;caseNumber<numCases;caseNumber++) {

            int a = input.nextInt();
            int b = input.nextInt();
            out.writeBytes("Case #" + (caseNumber+1) + ": " + solve(a, b) + "\n");
        }

        out.flush();
        out.close();

        bOut.flush();
        bOut.close();

        fOut.flush();
        fOut.close();
    }

    static boolean[] checked = new boolean[2000001];
    public static long solve(int a, int b) {

        for (int i=0;i<checked.length;i++) {
            checked[i] = false;
        }
        
        long count = 0;

        for (int number=a;number<=b;number++) {
        
            if (checked[number] == true) continue;

            int multiple = getMultiple(number);
            checked[number] = true;
            int countValid = 1;
            
            int run = next(number, multiple);
            while (run != number) {

                if (run >= multiple && a <= run && run <= b) {
                    checked[run] = true;
                    countValid++;
                    
                    //System.out.print(run + " ");
                }
                
                run = next(run, multiple);
            }
            
            if (countValid == 1) continue;
            //System.out.println(number);
            
            count += countValid * (countValid - 1) / 2;
        }

        return count;
    }
    
    public static int getMultiple(int s)  {
        if (s < 10) return 1;
        else if (s < 100) return 10;
        else if (s < 1000) return 100;
        else if (s < 10000) return 1000;
        else if (s < 100000) return 10000;
        else if (s < 1000000) return 100000;
        else if (s < 10000000) return 1000000;
        else {
            System.out.println("Fuck you");
            return -100000000;
        }
    }
    
    public static int next(int s, int multiple) {
        int residue = s % 10;
        return residue * multiple + s / 10;
    }

}
