/*
 * 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 google_jamp_c;
import java.io.*;
import java.util.*;
/**
 *
 * @author sabri
 */

public class Google_jamp_c {

    /**
     * @param args the command line arguments
     */
public static int recycled (int A, int B){
                int m = 0, c=0;
                String tmp = "", subB = "", subE = "", recycled = "";
                for (int n = A; n<B;n++)
                {
                        tmp = String.valueOf(n);
                        for (int j=0;j<tmp.length();j++)
                        {
                            subB = tmp.substring(0,j);
                            subE = tmp.substring(j);
                            recycled = subE+subB;
                            m = Integer.parseInt(recycled);
                            if ((m>n) && (m<=B)) 
                             {c++;}
                        }
                }
                return c;
        }
    public static void main(String[] args) throws FileNotFoundException, IOException {
        String ligne = "";
        int nbrLigne = 0,res,a,b;
        StringTokenizer st1;
        FileInputStream fStream = new FileInputStream("A-small-attempt.in");
		BufferedReader in = new BufferedReader(new InputStreamReader(fStream));
                if (in.ready()) {
			ligne = in.readLine();
			nbrLigne = Integer.parseInt(ligne);
      			for (int j = 0; j < nbrLigne; j++) {
				ligne = in.readLine();
                                st1=new StringTokenizer(ligne," ");
                                 a=Integer.parseInt(st1.nextToken());
                                  b=Integer.parseInt(st1.nextToken());
				System.out.print("Case #"+(j+1)+": ");
                                res=recycled(a,b);
                                System.out.print(res);
                          System.out.println("");
			}
		}
    }
}
