/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package gcj;

import java.io.File;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.Scanner;

/**
 *
 * @author daniele
 */
public class GCJ_C {
    
    public static void main(String[] args) throws Exception{
        
        
        
        Scanner in = new Scanner(new File(args[0]));
        FileWriter out = new FileWriter("/home/daniele/Scrivania/Output");
        

        int prove=in.nextInt();
        int min,max;
        int cifre;
        int cifreaus;
        String temp;
        int aus;
        int count=0;
        ArrayList<Integer> vals = new ArrayList<Integer>();
        int jcount=0;
        ArrayList<Integer> perm = new ArrayList<Integer>();
        
        out.write("");
        out.flush();
        
        for(int i=1;i<=prove;i++){
            
            out.append("Case #" +i+": ");out.flush();
            
            min=in.nextInt();
            max=in.nextInt();
            
            for(int j=min;j<=max;j++){
               if(!vals.contains(j)){
                    temp=""+j;
                    cifre=temp.length();
                    aus=j;
                    perm.add(j);
                    for(int k=1;k<cifre;k++){
                        aus=rotateOnce(aus);
                        temp=""+aus;
                        cifreaus=temp.length();//elusione zeri iniziali
                        if(aus>=min && aus<=max && aus!=j && cifreaus==cifre && nobody(vals,perm)){ 
                            perm.add(aus);
                            jcount ++;
                            
                        }
                        
                    }
                    while(jcount>0){count+=jcount; jcount--;}
                    vals.addAll(perm);
                    perm= new ArrayList<Integer>();
                    
                }
            }
            out.append(count+"\n");out.flush();
            count=0;
            vals= new ArrayList<Integer>();
        }
        
        
        
    }
        static public int rotateOnce(int n){
            String s=""+n;
            if(s.length()>1){
                s=s.charAt(s.length()-1) + s.substring(0,s.length()-1);
                n=Integer.parseInt(s);
            }
            return n;
        }    
        
        static public boolean nobody(ArrayList<Integer> v,ArrayList<Integer> a){;
            for(int i=0;i<a.size();i++)
                if(v.contains(a.get(i))) return false;
            return true;
        } 
    
}


/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package javaapplication3;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.io.Writer;
import java.util.Scanner;

/**
 *
 * @author yondaime
 */
public class JavaApplication3 {

    static int A = 1111;
    static int B = 2222;

    public static int[] permute(int n) {

        String chaine = n + "";
        int tailleChaine = chaine.length();
        int nombre;
        String g = "";
        for (int i = 0; i < tailleChaine; i++) {
            g += "1";
        }
        nombre = Integer.parseInt(g);
        if (chaine.length() < 1 || n % nombre == 0) {
            int[] t = new int[1];
            t[0] = n;
            return t;
        }
        int table[] = new int[10];

        for (int i = 0; i < tailleChaine - 1; i++) {
            String t = "";
            t = chaine.substring(i + 1);
            t += chaine.substring(0, i + 1);
            int m = Integer.parseInt(t);
            if (m > n && n >= A && m <= B) {
                table[i] = m;
//                System.out.println(table[i]);
            }
        }

//        System.out.println("end");
//
        int m = Integer.parseInt(chaine);

        return table;
    }
    static int count;

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

        Scanner sc = new Scanner(new File("C-small-attempt1.in"));
        PrintWriter out = new PrintWriter(new File("C-small-attempt1.out"));
        sc.next();
        int kl=0;
        while (sc.hasNext()) {
            
            A = sc.nextInt();
            B = sc.nextInt();
            out.print("Case #"+(++kl)+":");
//            out.print(" "+B);
            for (int n = A; n < B; n++) {
                int mm[] = permute(n);
                for (int k = 0; k < mm.length; k++) {
                    int m = mm[k];
                    // n doit etre < Ã  m
                    //n doit etre > Ã  A et m doit etre inferieur Ã  B
                    // A <= n < m <= B
                    if (n >= m || A > n || m > B) {
                        continue;
                    }
                    count++;
//                    out.print("n = " + n + " m = " + m);
                }


            }
            out.println(" " + count);
            count=0;

        }
        out.close();
        sc.close();
    }
}
