/*
 * 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.IOException;
import java.io.InputStreamReader;
import java.util.HashSet;
import java.util.Set;

public class Recycled {

  public static void main(String[] args) throws IOException {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    String line = br.readLine();
    int t = Integer.parseInt(line);
    for (int i = 0; i < t; i++) {
      Set<String> set = new HashSet<String>();
      line = br.readLine();
      String[] split = line.split(" ");
      int A = Integer.parseInt(split[0]);
      int B = Integer.parseInt(split[1]);
      int digits = String.valueOf(A).length();
      if (digits != 1){
        for (int j = A; j <= B; j++) {
          String oldString = String.valueOf(j);
//          System.out.println("AA  " + oldString);
          for (int j2 = 1; j2 < digits; j2++) {
            String newString = oldString.substring(j2).concat(oldString.substring(0, j2));
            if(newString.charAt(0) == '0')continue;
            int newInt = Integer.valueOf(newString);
            if (newInt >= A && newInt <= B && j<newInt) {
//              System.out.println("BBB  " + newString);
              set.add(oldString+newString);
            }
          }
        }
      }
      System.out.println("Case #" + (i + 1) + ": " + set.size());
    }
  }

}
