/*
 * 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.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;


public class RecycledNumbersSolver {
	public static void main(String[] args) {
		try {
			FileInputStream fIS = new FileInputStream(args[0]);
			BufferedReader r = new BufferedReader(new InputStreamReader(fIS));
			
			int t = Integer.parseInt(r.readLine());
			for (int i=0;i<t;++i) {
				System.out.print("Case #" + (i+1) + ": ");
				if (i < t-1)
					System.out.println(solveTest(r.readLine()));
				else
					System.out.print(solveTest(r.readLine()));
			}
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (NumberFormatException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}			
	}

	private static int solveTest(String line) {
		Map<Integer, List<Integer>> matches = new HashMap<Integer, List<Integer>>();
		
		String[] nums = line.split(" ");
		int a = Integer.parseInt(nums[0]);
		int b = Integer.parseInt(nums[1]);
		Integer bInt = b;
		
		int result = 0;
		
		for (int i=a;i<b;++i) {
			result += solveTest(i, bInt, matches);
		}
		
		return result;
	}

	private static int solveTest(Integer n, Integer max, Map<Integer, List<Integer>> matches) {
		String txt = n.toString();
		int digits = txt.length();
		
		int counter = 0;
		
		for (int i=1;i<digits;++i) {
			Integer nNum = getRecycled(txt, i);
			if (nNum.compareTo(n) > 0 && nNum.compareTo(max) <= 0) {
				if (matches.get(n) == null)
					matches.put(n, new LinkedList<Integer>());
				
				List<Integer> list = matches.get(n);
				if (!list.contains(nNum)) {
					list.add(nNum);
					++counter;
				}
			}
		}
		
		return counter;
	}

	private static Integer getRecycled(String txt, int shift) {
		StringBuilder bld = new StringBuilder();
		
		for (int i=txt.length()-shift;i<txt.length();++i)
			bld.append(txt.substring(i, i+1));
		
		for (int i=0;i<txt.length()-shift;++i)
			bld.append(txt.substring(i, i+1));
		
		return Integer.parseInt(bld.toString());
	}
}
