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

import java.util.HashSet;

/**
 *
 * @author vandit
 */
public class RecycleNumbers {

    private HashSet<String> numbers = new HashSet<String>();
    private HashSet<String> initialTempNumbers = new HashSet<String>();
    private HashSet<String> finalTempNumbers = new HashSet<String>();

    HashSet<Pair> numberPairs = new HashSet<Pair>();


    private void findRecycledNumbers(int start, int end, int places) {


        for (int i = start; i <= end; i++) {
            String initialNumber = Integer.toString(i);
            //if (!(numbers.contains(initialNumber) || finalTempNumbers.contains(initialNumber))) {

                StringBuffer tempNumber = new StringBuffer(initialNumber);
                int len = tempNumber.length();
                int startIndexToMove = len - places;
                String tempString = tempNumber.substring(startIndexToMove);
                if ((places == 1 && tempString.equals("0")) || tempString.charAt(0) == '0') {
                    continue;
                }
                tempNumber.delete(startIndexToMove, len);
                String finalTempNumber = tempString + tempNumber.toString();

                if (! (finalTempNumber.equals(initialNumber) || Integer.parseInt(finalTempNumber) > end || Integer.parseInt(finalTempNumber) < Integer.parseInt(initialNumber))) {
                    numbers.add(initialNumber);
                    finalTempNumbers.add(finalTempNumber);
                    Pair pair = new Pair(finalTempNumber,initialNumber);
                    numberPairs.add(pair);
                }
            }

        

    }

    public HashSet<Pair> findAllRecycledNumbers(int start, int end) {
        int length = Integer.toString(start).length();
        for (int i = 1; i < length; i++) {
            findRecycledNumbers(start, end, i);
        }
        return numberPairs;
    }
}

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

   public class Recycle
   {
      static int total;
		static Set<Integer> set;
      public static void main(String[] codejam) throws Exception
      {
         BufferedReader br = new BufferedReader (new FileReader ("recycle.in"));
         PrintStream ps = new PrintStream (new FileOutputStream ("recycle.out"));
         int t = Integer.parseInt(br.readLine());
         for(int l=1;l<=t;l++)
         {
            String[] in = br.readLine().split(" ");
            int first = Integer.parseInt(in[0]);
            int last = Integer.parseInt(in[1]);
            total = 0;
            for(int i=first;i<last;i++)
            {
               rotate(i, first, last);
            }
            ps.println("Case #" + l + ": " + total);
         
         }
      }
      public static void rotate(int m, int a, int b)
      {
			int q = 0;
         int n = m;
         String number = "" + m;
			set = new TreeSet<Integer>();
         for(int i=0;i<number.length()-1;i++)
         {
            String temp = number.substring(number.length()-1, number.length()) + number.substring(0, number.length()-1);
            m = Integer.parseInt(temp);
            if(("" + m).length() == number.length())
            {
               if(m <=b && m > a && m > n && !set.contains(m))
               {
						set.add(m);
                  total++;
               }
            }
            number = temp;
         }
      }
   }