/*
 * 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.BufferedReader;
import java.io.FileReader;
import java.io.PrintStream;
import java.util.HashSet;

/**
 *
 * @author peterboyen
 */
public class RecycledNumbers {

    public static void main(String[] args) throws Exception {
        BufferedReader br = new BufferedReader(new FileReader("/Users/peterboyen/Downloads/C-small-attempt1.in"));

        String line = br.readLine();

        int testCases = Integer.parseInt(line);

        PrintStream ps = new PrintStream("/Users/peterboyen/Downloads/C-small-attempt1.out");
        for (int i = 1; i <= testCases; i++) {
            line = br.readLine();

            ps.println("Case #" + i + ": " + solve(line));
        }

        br.close();
        ps.close();
    }

    private static int solve(String line) {
        String[] split = line.split(" ");
        int A = Integer.parseInt(split[0]);
        int B = Integer.parseInt(split[1]);

        int result = 0;
        for (int m = A + 1; m <= B; m++) {
            result += getRecycled(m, A);
        }

        return result;
    }

    private static int getRecycled(int m, int A) {
        String M = "" + m;

        HashSet<Integer> set = new HashSet<Integer>();

        int result = 0;
        for (int i = 0; i < M.length() - 1; i++) {
            M = M.substring(1) + M.charAt(0);
            if (M.charAt(0) != '0') {
                int n = Integer.parseInt(M);
                if (n >= A && n < m && !set.contains(n)) {
                    result++;
                    set.add(n);
                }
            }
        }

        return result;
    }
}
