/*
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 * 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      :Yasith Maduranga(Merlin)
 * @version     :1.0
 * @Date        :2012/4/14
 * @Copyright GSharp Lab, All Rights Reserved....
 */
import java.io.*;
import java.util.*;

class recyclednumbers {
	public static void main(String args[]){
		try{
	    	BufferedReader br = new BufferedReader(new FileReader("C-small-attempt0.in"));
	    	PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter("C-small-attempt0.out")));

	    	int noOfCases = Integer.parseInt(br.readLine());

	    	for(int i=0;i<noOfCases;i++){
	    		String tmp[]=br.readLine().split(" ");
	    		long a=Long.parseLong(tmp[0]);
	    		long b=Long.parseLong(tmp[1]);
	    		long pairOfNo=0;
	    		ArrayList<Long> myArray=new ArrayList<Long>();
	    		myArray.add(a);

	    		for(long j=a;j<b+1;j++){
					long charLength=String.valueOf(j).length();
					if(charLength<=1){
						break;
					}
					for(long k=0;k<charLength-1;k++){
						String tmp1=String.valueOf(j).substring(0,(int)k+1);
						String tmp2=String.valueOf(j).substring((int)k+1);
						String newNo=tmp2+tmp1;
						if(Long.parseLong(newNo)<=b){
							if(!(Long.parseLong(newNo)==j)){
								if(!(Long.parseLong(newNo)<=j)){
									boolean isRepeated=true;
									for(long l=0;l<myArray.size();l++){
										if(myArray.get((int)l)==Long.parseLong(newNo)){
											isRepeated=true;
										}else{
											isRepeated=false;
										}
									}
									if(!isRepeated){
										pairOfNo++;
										myArray.add(Long.parseLong(newNo));
									}

								}
							}
						}
					}
	    		}
				out.println("Case #"+(i+1)+": "+pairOfNo);
	    	}



	    	out.close();
		}catch(Exception e){
			e.printStackTrace();
		}
	    	System.exit(0);
	}
}
