import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.HashSet;

public class Recycled {
    public static void main(String[] args) {
        try {
            BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
            int t = Integer.parseInt(br.readLine());
            for (int i = 0; i < t; i++) {
                String[] str = br.readLine().split(" ");
                int a = Integer.parseInt(str[0]);
                int b = Integer.parseInt(str[1]);
                System.out.println("Case #" + (i + 1) + ": " + find(a, b));
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private static int find(int a, int b) {
        HashSet<Long> used = new HashSet<Long>();
        int digits = String.valueOf(a).length();
        if (digits == 1) return 0;
        for (int i = a; i <= b; i++) {
            int s = 10;
            int m = (int) Math.pow(10, digits-1);
            for (int j = 0; j < digits-1; j++) {
                int r = i % s;
                if (r < s/10) continue;
                int q = i / s;
                int rn = r * m + q;
                s *= 10; m /= 10;
                if (i != rn && rn >= a && rn <= b) {
                    long pp;
                    if (rn < i) pp = (long)rn << 30 | i;
                    else pp = (long)i << 30 | rn;
                    if (!used.contains(pp)) {
                        used.add(pp);
                    }
                }
            }
        }
        return used.size();
    }
}

import java.util.*;
import java.io.*;
class Recycled_Numbers
{
  public static void main(String arg [])
  {
    int check =-456;
       String m="";
    int counter =0;
    int calculate =0;
    String sub="";
    int mi =0;
     int ma=0;
    String path;
    String first,second;
    int numberOfLoops=0;
     Scanner read = new Scanner(System.in);
    System.out.println("pls enter your file");
    path = read.nextLine();
    
   
    BufferedWriter bw;
    try
    {
      File  fobj = new File(path);
      Scanner sc = new Scanner(fobj);
      bw =new BufferedWriter( new FileWriter("RecycleOutput.txt"));
      int tests = sc.nextInt()  ,meter = 1;
      while (meter <= tests)
      {  
     
        mi= sc.nextInt();
          ma =sc.nextInt();
     
    while(mi<=ma)
    {
         counter =0;  
        m = mi+"";
     
     
      while(counter <m.length()-1)
      {
        numberOfLoops=m.length()-1;
        second = m.substring(numberOfLoops -counter);
        first = m.substring(0,numberOfLoops-counter);
        sub = second+first;
     
        if ((Integer .parseInt(sub)>mi)&&(Integer .parseInt(sub)<=ma)&&(Integer .parseInt(sub)!=check) )
        {
            
          calculate++;
        check= Integer .parseInt(sub);
        }
        
        counter++;
      }
      
      
      mi++;
    } 
    bw.write("Case #"+meter+": " +calculate );
    bw.newLine();
    calculate =0;
    meter++;
    } 
    bw.close();
      }//end of try
    catch(IOException e)
    {
      System.out.println(e);
    }
   
    }    
}