/*
 * 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 problem3;

import java.io.FileReader;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Locale;
import java.util.Map;
import java.util.Scanner;
import java.util.Set;

/**
 *
 * @author lhideg
 */
public class Problem3 {

    private static String fileName = Problem3.class.getSimpleName().replaceFirst("_.*", "");
    private static String inputFileName = fileName + ".in";
    private static String outputFileName = fileName + ".out";
    private static Scanner in;
    private static PrintWriter out;

    private int solve() {
        Map<String, Integer> solutionMap = new HashMap<String, Integer>();
        int result = 0;

        String nStr = in.next();
        String mStr = in.next();

        Integer n = Integer.valueOf(nStr);
        Integer m = Integer.valueOf(mStr);
        Set<Integer> watchedSet = new HashSet<Integer>();
        Set<String> valueSet = new HashSet<String>();
        if (nStr.length() != 1) {
            for (int i = n; i <= m; i++) {
                String str = String.valueOf(i);
                watchedSet.add(i);

                String watchStr = str;

                for (int j = 0; j < str.length() - 1; j++) {
                    watchStr = watchStr.substring(1) + watchStr.charAt(0);
                    if (watchStr.charAt(0) == '0') {
                        continue;
                    }
                    Integer watchInt = Integer.valueOf(watchStr);
                    watchedSet.add(watchInt);
                    if (watchInt > i && watchInt <= m && watchInt > i) {
                        valueSet.add(str+watchStr);
                        valueSet.add(watchStr+str);
                    }
                }
            }
        }
        return valueSet.size()/2;
    }

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) throws IOException {
        Locale.setDefault(Locale.US);
        if (args.length >= 2) {
            inputFileName = args[0];
            outputFileName = args[1];
        }
        in = new Scanner(new FileReader(inputFileName));
        out = new PrintWriter(outputFileName);
        int tests = in.nextInt();
        in.nextLine();
        for (int t = 1; t <= tests; t++) {
            System.out.println("#" + t);
            out.print("Case #" + t + ": ");
            out.print(new Problem3().solve() + "\n");
        }
        in.close();
        out.close();

    }
}
