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

package year_2012.qualification;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashSet;
import java.util.Set;

/**
 *
 * @author paul
 * @date 14 Apr 2012
 */
public class QuestionC {

    private static Set<Integer> getCycle(int x) {

        String s = Integer.toString(x);
        Set<Integer> set = new HashSet<Integer>();
        set.add(x);
        for (int c = 1; c < s.length(); c++) {
            String t = s.substring(c).concat(s.substring(0, c));
            set.add(Integer.parseInt(t));
        }
        return set;
        
    }

    private static Set<Integer> mask(Set<Integer> set, int a, int b) {
        Set<Integer> result = new HashSet<Integer>();

        for (int x : set) {
            if (x >= a && x <= b) {
                result.add(x);
            }
        }
        
        return result;

    }


    public static void main(String[] args) throws FileNotFoundException, IOException {

        String question = "C";

//        String name = "large";
        String name = "small-attempt0";
//        String name = "test";

        String filename = String.format("%s-%s", question, name);

        BufferedReader input = new BufferedReader(
                new FileReader(String.format("/home/paul/Documents/code-jam/2012/qualification/%s.in",
                filename)));

        String firstLine = input.readLine();

        PrintWriter pw = new PrintWriter(new File(
                String.format("/home/paul/Documents/code-jam/2012/qualification/%s.out", filename)));


        int T = Integer.parseInt(firstLine);

        // Loop through test cases.
        for (int i = 0; i < T; i++) {

//             Read data.
            String[] tokens = input.readLine().split(" ");

//            int N = Integer.parseInt(input.readLine());

            int A = Integer.parseInt(tokens[0]);
            int B = Integer.parseInt(tokens[1]);

//            System.out.format("%d, %d\n", A, B);

            boolean[] used = new boolean[B+1];
            int total = 0;
            for (int n = A; n <= B; n++) {
                if (!used[n]) {
                    Set<Integer> set = mask(getCycle(n), A, B);
                    int k = set.size();
                    total += (k * (k-1))/2;
                    for (int m : set) {
                        used[m] = true;
                    }
                }
            }

            pw.format("Case #%d: %d\n", i + 1, total);
        }

        pw.close();

    }

}

/**
 *
 * @author Tag
 */

/*
 * Given integers A and B with the same number of digits and no leading zeros, how many distinct recycled pairs (n, m) are there with A â¤ n < m â¤ B?
 * Input
 * The first line of the input gives the number of test cases, T. T test cases follow. Each test case consists of a single line containing the integers A and B.
 * 
 * Output
 * For each test case, output one line containing "Case #x: y", where x is the case number (starting from 1), and y is the number of recycled pairs (n, m) with A â¤ n < m â¤ B.\
 * 
 * Sample
 * Input                Output
 * 4
 * 1 9                     Case #1: 0
 * 10 40                   Case #2: 3
 * 100 500                 Case #3: 156
 * 1111 2222               Case #4: 287
 */


import java.util.Scanner;

public class RecycledNumbers 
{
    public static void main(String args[])
    {
        Scanner input = new Scanner(System.in);
        
        int numTests = new Integer(input.nextLine());
        int recycledPairs;
        
        for(int i = 1; i <= numTests; i++)
        {
            String[] tokens = input.nextLine().split(" ");
            
            Integer smallerNum = new Integer(tokens[0]);
            Integer biggerNum = new Integer(tokens[1]);
            
            recycledPairs = calcRecycled(smallerNum, biggerNum);
            
            System.out.println("Case #" + i + ": " + recycledPairs);
        }
    }

    private static int calcRecycled(Integer smallerNum, Integer biggerNum) 
    {
        int recycledPairs = 0;
        
        while(smallerNum < biggerNum)
        {
            String toCheck = smallerNum.toString();
            
            Integer tmpBigger = new Integer(biggerNum);
            
            while(smallerNum < tmpBigger)
            {
                String biggerStr = tmpBigger.toString();
                
                for(int i = 1; i < biggerStr.length(); i++)
                {
                    if((biggerStr.substring(biggerStr.length() - i) + 
                        biggerStr.substring(0, biggerStr.length() - i)).equals(toCheck))
                    {
                        recycledPairs++;
                    }
                }
                
                tmpBigger--;
            }
            
            smallerNum++;
        }
        
        return recycledPairs;
    }
}
