/*
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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();

    }

}

import java.util.*;
import static java.lang.Math.*;
import java.io.*;

public class C {
		
public static void main(String[] args) throws IOException {
  BufferedReader in = new BufferedReader(new FileReader("C:/Users/Disha/Desktop/codejam/C-small.in"));
  FileWriter fw = new FileWriter("C:/Users/Disha/Desktop/codejam/C-small.out");
  /*BufferedReader in = new BufferedReader(new FileReader("C:/Users/Disha/Desktop/codejam/C-large.in"));
  FileWriter fw = new FileWriter("C:/Users/Disha/Desktop/codejam/C-large.out");*/

  int N = new Integer (in.readLine());
  int count = 0;
  for (int cases = 1; cases <= N; cases++) {
	  count = 0;
	  String[] ss = in.readLine().split(" ");
	  int a = Integer.parseInt(ss[0]);
	  int b = Integer.parseInt(ss[1]);
      for (int here = a; here <= b; here++) {
		  int len = Integer.toString(here).length();   	  
		  int len2 = (int) (Math.pow(10, (len-1)));
    	  int num2 = 0;    	  
    	  int num1 = here;
    	  for(int i=0; i<= (len - 1) ; i++){
    		  num2 = (10 * (num1 % len2)) + (num1 / len2);
    		  while(Integer.toString(num2).length() < len){
    			  num2 = num2*10;
    			  i++;
    		  }
    		  
    		  if (num2 == here){
    			  break;
    		  }
    		  if ((num2 <= b) && (num2 > here)){
    		  count ++;
    		  }
    		  num1 = num2;
    	  }
      }
    	  fw.write ("Case #" + cases + ": " + count + "\n" );
      }
  fw.flush();
  fw.close();
  }}
