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

import java.io.File;
import java.io.FileInputStream;
import java.util.Scanner;

/**
 *
 * @author imgps
 */
public class C {
    public static void main(String args[]) throws Exception{
        int A,B;
        int ctr = 0;
        int testCases;
        
        Scanner sc = new Scanner(new FileInputStream("C-small-attempt0.in "));
        testCases = sc.nextInt();
        int input[][] = new int[testCases][2];
        for(int i=0;i<testCases;i++)
        {
          //  System.out.print("Enter input A B: ");
            input[i][0] = sc.nextInt();
            input[i][1] = sc.nextInt();
            
        }
  

for(int k=0;k<testCases;k++){
      ctr = 0;
      A = input[k][0];
      B = input[k][1];
        for(int i = A;i<=B;i++){
            int num = i;
            int nMul = 1;
            int mul = 1; 
            int tnum = num/10;
            while(tnum > 0){
                mul = mul *10;
                tnum= tnum/10;
            }
            tnum = num;
            int n = 0;
            while(tnum > 0 && mul >= 10){
                nMul = nMul * 10;
                n = (num % nMul) * mul + (num / nMul);
                mul = mul / 10;
                tnum = tnum / 10;
                for(int m=num;m<=B;m++){
                    
                    if(n == m && m > num){
                        ctr++;
                    }
                }
                
                
                
         
            }
        }
        System.out.println("Case #"+(k+1)+": "+ctr);
        
    }
    }
}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package cj2012;

import java.io.BufferedReader;
import java.io.FileReader;
import java.util.*;

/**
 *
 * @author agraa1
 */
public class Recycle {
    public static void main(String[] args) throws Exception {
        Recycle puzzle = new Recycle();
        puzzle.solve();
    }
    
    private void solve() throws Exception {
        BufferedReader br = new BufferedReader(new FileReader("E:\\C-small-attempt0.in"));
        String line = br.readLine();
        for (int count=0; count<Integer.valueOf(line); count++) {
            showResult(count+1, br.readLine());
        }
        br.close();
    }
    
    private void showResult(int caseNum, String input) {
        List<Integer> recNumbers = new ArrayList<Integer>();
        StringTokenizer tokenizer = new StringTokenizer(input, " ");
        String A = tokenizer.nextToken();
        String B = tokenizer.nextToken();
        if (Integer.valueOf(B) > 10) {
            findSolution(A, B, recNumbers);
        }
        StringBuilder builder = new StringBuilder("Case #");
        builder.append(caseNum);
        builder.append(": ");
        builder.append(recNumbers.size());
        System.out.println(builder.toString());
    }
    
    private void findSolution(String A, String B, List recNumbers) {
        int numA = Integer.valueOf(A);
        int numB = Integer.valueOf(B);
        for (int num = numA; num < numB; num++) {
            getRecycles(num, numA, numB, recNumbers);
        }
    }
    
    private void getRecycles(int num, int numA, int numB, List recNumbers) {
        String toBeRec = ""+num;
        //System.out.println("Recycles for " + num);
        Set<Integer> recyclesForNum = new HashSet<Integer>();
        for (int count=1; count<toBeRec.length(); count++) {
            int recycledNum = Integer.valueOf(toBeRec.substring(toBeRec.length() - count, toBeRec.length()) + toBeRec.substring(0, toBeRec.length() - count));
            //System.out.println("" + count + ":" + recycledNum);
            if ( recycledNum <= numB && recycledNum >= numA && recycledNum > num) {
                //System.out.println("#" + (recNumbers.size()+1) + " ----------------" + num + "--" + recycledNum);
                recyclesForNum.add(recycledNum);
            }
        }
        recNumbers.addAll(recyclesForNum);
    }
}
