package Main;

import com.sun.deploy.util.ArrayUtil;
import org.apache.commons.lang3.ArrayUtils;

import java.io.*;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;

/**
 * Created with IntelliJ IDEA.
 * User: arran
 * Date: 14/04/12
 * Time: 3:12 PM
 * To change this template use File | Settings | File Templates.
 */
public class Round {
    public StringBuilder parse(BufferedReader in) throws IOException {
        StringBuilder out = new StringBuilder();
        String lineCount = in.readLine();

        for (int i = 1; i <= Integer.parseInt(lineCount); i++)
        {
            out.append("Case #"+i+": ");
            System.err.println("Case #"+i+": ");
            String line = in.readLine();
            String[] splits = line.split(" ");
            int p1 = Integer.valueOf(splits[0]);
            int p2 = Integer.valueOf(splits[1]);
            int r = pairRecyclable(p1, p2);
            out.append(r);

//            if (i < Integer.parseInt(lineCount))
                out.append("\n");
        }
        return out;
    }

    public static int pairRecyclable(int i1, int i2) {
        HashSet<String> hash = new HashSet<String>();
        for (int i = i1; i < i2; i++)
        {
            String istr = String.valueOf(i);
            if (istr.length() < 2) continue;
            for (int p = 0; p < istr.length() ; p++)
            {
                String nistr = istr.substring(p,istr.length()).concat(istr.substring(0,p));
                if (Integer.valueOf(nistr) < i1) continue;
                if (Integer.valueOf(nistr) > i2) continue;
                if (nistr.equals(istr)) continue;
                String cnistr = (Integer.valueOf(nistr) > Integer.valueOf(istr)) ?  istr + "," + nistr : nistr + "," + istr;
                hash.add(cnistr);
            }
        }
        return hash.size();
    }

    public static void main(String[] args) {
        InputStreamReader converter = null;
        try {
            int attempt = 0;
            String quest = "C";
//            String size = "small-attempt";
            String size = "large";
            converter = new InputStreamReader(new FileInputStream("src/resource/"+quest+"-"+size+".in"));
            BufferedReader in = new BufferedReader(converter);
            Round r = new Round();
            String str = r.parse(in).toString();
            System.out.print(str);
            FileOutputStream fos = new FileOutputStream(quest+"-"+size+".out");
            OutputStreamWriter osw = new OutputStreamWriter(fos);
            BufferedWriter bw = new BufferedWriter(osw);
            bw.write(str);
            bw.flush();
            bw.close();
        } catch (IOException e) {
            e.printStackTrace();
        }

    }
}

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

package com.falidae;


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

/**
 *
 * @author LittleRock
 */
public class RecycledNumbers {

    public RecycledNumbers() {
    }

    public void init() {

    }
    
    public long solve(int a, int b) {
        Set<Integer> valid = new HashSet<Integer>();
        long reval = 0l;
        for (int i = a; i <= b; i++) {
            String digits = Integer.toString(i);
            char last = digits.charAt(0);
            boolean allSame = true;
            for (int j = 1; j < digits.length(); j++) {
                if (digits.charAt(j) != last) {
                    allSame = false;
                }
            }
            if (allSame) {
                continue;
            }
            int pow10a = 1;
            int pow10b = (int)Math.pow(10, digits.length());
            valid.clear();
            
            for (int j = 1; j < digits.length(); j++) {
                pow10a *= 10;
                pow10b /= 10;
                int front = i / pow10a;
                int back = i % pow10a;
                int shifted = back * pow10b + front;
//                System.out.println("front " + front + ", back " + back);
//                System.out.println("shifted " + shifted);
                if (Integer.toString(shifted).length() == digits.length() && shifted <= b && shifted > i) {
                    valid.add(shifted);
                }
            }
//            if (valid.size() > 0) {
//                System.out.println(i + " cycle valid " + valid.size());
//            }
            
            reval += valid.size();
        }
        return reval;
    }

    public static void main(String[] args) throws IOException {
        Scanner in = new Scanner(new FileReader("in.txt"));
        PrintWriter out = new PrintWriter(new FileWriter("out.txt"));
        RecycledNumbers solver = new RecycledNumbers();

        int testCount = in.nextInt();
        for (int i = 0; i < testCount; i++) {
            solver.init();
            printIndex(i, out);
            out.print(solver.solve(in.nextInt(), in.nextInt()));
            out.println();
        }

        in.close();
        out.flush();
        out.close();
    }

    private static void printIndex(int i, PrintWriter out) {
        out.printf("Case #%d: ", i + 1);
    }
}