/*
 * 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 Round0;

import custom.Output;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;
import java.util.StringTokenizer;

/**
 *
 * @author shyam
 */
public class C {
    static String inputfile="./src/Small.in";
    static String outputfile="./src/Small.out";
    //static String inputfile="./src/Large.in";
    //static String outputfile="./src/Large.out";

     public static void main(String args[])throws Exception{
        BufferedReader br=new BufferedReader(new FileReader(inputfile));
        PrintWriter pw = new PrintWriter(new FileWriter(outputfile));

        String row="";
        StringTokenizer st;

        // first line to count no of records
        row=br.readLine();
        int T=Output.ipri(row);

        
        // initial variables


        for(int count=1;count<=T;count++){
            row=br.readLine(); // read each record
            // tokenize: default space
            st=new StringTokenizer(row);

            // variables
            int A= Output.ipri((st.nextToken().toString()));
            int B= Output.ipri((st.nextToken().toString()));
            int c_pairs = 0;
            List pairs = new ArrayList();

            // operations
            for(int i=A;i<=B;i++){
                String dig = ""+i;
                if(dig.length() == 1){
                    break;
                }
                int pos=0;

                for(int j=0;j<dig.length()-1;j++){
                    pos=j+1;
                    for(int n=i+1;n<=B;n++){
                        int m = Output.ipri(dig.substring(pos)+dig.substring(0,pos));
                        if(n == m
                           && n != Output.ipri(dig.substring(0,pos)+dig.substring(pos))
                           && n != i
                           && i < m){

                            if(pairs.contains(i+"-"+m))
                                continue;
                            c_pairs++;
                            //Output.sopl(i+" - "+m);
                            pairs.add(i+"-"+m);
                            break;
                        }
                    }
                }
            }




            // printing output
            Output.sopl("Case #"+count+": "+c_pairs);
            pw.println("Case #"+count+": "+c_pairs);


            // reset variables

        }

        br.close();
        pw.close();
    }

}
