/*
 * 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.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.HashSet;

public class reycle {

    public static void main(String[] args) throws Exception {

        BufferedReader in = new BufferedReader(new FileReader("C-small-attempt0.in"));
        PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter("C-small-attempt0.out")));
        boolean state[] = new boolean[1001];
        HashSet<Integer> mem=new HashSet<Integer>();
        int t = Integer.parseInt(in.readLine());
 
        for (int q = 1; q <= t; q++) {
            String[] st = in.readLine().split(" ");
            int A = Integer.parseInt(st[0]);
            int B = Integer.parseInt(st[1]);
            int count = 0;
            for (int i = A; i <= B; i++) {
                state[i] = true;
                String temp = i + "";
                for (int j = 1; j < temp.length(); j++) {
                    String r = temp.substring(j) + temp.substring(0, j);
                    int b = Integer.parseInt(r);
                    if ((b + "").length() == temp.length() && b >= A && b <= B && !state[b]&&!mem.contains(b)) {
                      mem.add(b);
                        count++;
                    }
                }

            mem.clear();
            }
            out.write("Case #"+q+": "+count+"\n");
            Arrays.fill(state, false);
        }
        out.close();

    }
}
