/*
 * 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);
        
    }
    }
}

import java.io.*;
import java.util.*;
class Problems 
{
    public static void main (String [] args) throws Exception 
    {
        BufferedReader f = new BufferedReader(new FileReader("input.java"));
        PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter("output.java")));
        StringTokenizer st = new StringTokenizer(f.readLine());
        int T=Integer.parseInt(st.nextToken());
        for(int t=0;t<T;t++) {
            st=new StringTokenizer(f.readLine());
            int A=Integer.parseInt(st.nextToken());
            int B=Integer.parseInt(st.nextToken());
            long ans=0;
            for(int i=A;i<=B;i++) {
                for(int j=i+1;j<=B;j++) {
                    String a=i+"";
                    String b=j+"";
                    boolean works=false;
                    int count=0;
                    while(count<a.length()&&!a.equals(b)) {
                        a=a.substring(1,a.length())+a.charAt(0);
                        count++;
                    }
                    if(a.equals(b)) works=true;
                    count=0;
                    while(count<a.length()&&!a.equals(b)) {
                        a=a.charAt(a.length()-1)+a.substring(0,a.length()-1);
                        count++;
                    }
                    if(a.equals(b)) works=true;
                    if(works) ans++;
                }
            }
            out.println("Case #"+(t+1)+": "+ans);
        }
        out.close();
        System.exit(0);
    }
}
