import java.io.*;

class code1
{
	public static void main(String args[]) throws Exception 
	{
		File ii = new File ("C-small-attempt1.in");
		FileInputStream fis = new FileInputStream(ii);
		BufferedReader  br = new BufferedReader(new InputStreamReader (fis));
		int cases = Integer.parseInt(br.readLine());
		FileOutputStream fout = new FileOutputStream ("output.txt");
		DataOutputStream dout = new DataOutputStream (fout);
		int total=0;
		for(int i=0;i<cases;i++){
		String temp = br.readLine();
		String parts [] = temp.split(" ");
		int lower = Integer.parseInt(parts[0]);
		int upper = Integer.parseInt(parts[1]);
		System.out.println(lower+" "+upper);
		
		for(int j=lower;j<=upper;j++)
		{
			int abc = j;int length=0;
			if(j<10)continue;
			while (abc!=0){abc/=10;length++;}
			abc=j;
			for(int m=0;m<length-1;m++){
				int shift = abc%10;
				abc=abc/10;
				System.out.println("hi "+j);
				abc=abc+shift*power(10,length-1);
				if(abc<=upper&&shift!=0&&abc>j)total++;
				System.out.println(total);
			}
		}
 		dout.writeBytes("Case #"+(i+1)+ ": "+total+"\n");
 		total=0;
		}//for close
		
	}

	private static int power(int i, int j) {
		int no=1;
		for(int a=0;a<j;a++){no=10*no;}
		return no;
	}
}
/*
 * Copyright 2012 Bill Bejeck
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */

package comp;

import java.io.*;

/**
 * User: Bill Bejeck
 * Date: 4/13/12
 * Time: 9:36 PM
 */
public class Recycled {
    public static void main(String[] args) throws Exception {
        BufferedReader reader = new BufferedReader(new InputStreamReader(new FileInputStream(args[0])));
        PrintWriter writer = new PrintWriter(new BufferedWriter(new FileWriter(new File(args[1]))));
        int numCases = Integer.parseInt(reader.readLine());
        for (int i = 0; i < numCases; i++) {
            String[] pair = reader.readLine().split(" ");
            int numberOne = Integer.parseInt(pair[0]);
            int numberTwo = Integer.parseInt(pair[1]);
            int count = getRecycled(numberOne, numberTwo);
            String result = String.format("Case #%d: %d", (i + 1), count);
            System.out.println(result);
            writer.println(result);
        }
        writer.flush();
        writer.close();
        reader.close();


    }

    private static int getRecycled(int n, int max) {
        int recycleCount = 0;
        for (int i = 0; i < max; i++) {
            String nSt = Integer.toString(n);
            int newMax = (n + 1);
            for (int k = 0; k < max && newMax <= max; k++) {
                String maxString = Integer.toString(newMax);
                for (int j = nSt.length() - 1; j >= 0; j--) {
                    String end = nSt.substring(j);
                    String start = nSt.substring(0, nSt.indexOf(end, j));
                    if (maxString.startsWith(end) && maxString.endsWith(start)) {
                        if (maxString.equals(end + start)) {
                            recycleCount++;
                        }
                    }

                }
                newMax++;
            }
            n++;
        }
        return recycleCount;
    }
}
