/*
 * 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;
        } 
    
}


import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

public class Recycled_Numbers {
	public static int recycled(int A, int B) {
		int n = 0, j = 0, m = 0, c = 0;
		String tmp = "", subB = "", subE = "", recycled = "";
		for (n = A; n <= B; n++) {
			// System.out.println("");
			tmp = String.valueOf(n);
			for (j = 0; j < tmp.length(); j++) {
				subB = tmp.substring(0, j + 1);
				subE = tmp.substring(j + 1);
				recycled = subE + subB;
				m = Integer.parseInt(recycled);
				if ((m > n) && (m <= B)) {
					c++;
					//System.out.println(n+","+m);
				}
				// System.out.println(recycled);
			}
		}
		return c;
	}

	public static void main(String[] args) {
		String filename = "/myown/developpement/Google_Code_Jam/recycled_numbers.in";
		String ligne = "";
		StringTokenizer st1;
		int i = 0, j = 0;
		int nbrLigne = 0;
		String tmp = "";
		int A = 0, B = 0;
		try {
			FileInputStream fStream = new FileInputStream(filename);
			BufferedReader in = new BufferedReader(new InputStreamReader(
					fStream));
			if (in.ready()) {
				ligne = in.readLine();
				nbrLigne = Integer.parseInt(ligne);
				for (j = 0; j < nbrLigne; j++) {
					ligne = in.readLine();

					st1 = new StringTokenizer(ligne, " ");
					A = Integer.parseInt(st1.nextToken());
					// tmp = "";
					B = Integer.parseInt(st1.nextToken());
					//System.out.println(A + "," + B);
					System.out.println("Case #"+(j+1)+": " + recycled(A, B));
				}
			}
		} catch (IOException e) {
			System.out.println("File input error");
		}
	}
}
