/*
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 * 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.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.StringTokenizer;
import java.util.Vector;
import java.util.HashMap;

public class Algorithm3 {

	static final String input_path = "F://workspace//GoogleContest2012//src//input.txt";
	static final String output_path = "F://workspace//GoogleContest2012//src//output.txt";
	static int total_case;
	
	static int findMax(String line){
		StringTokenizer token  = new StringTokenizer(line);
		Integer small = Integer.parseInt((String)token.nextElement());
		Integer large  = Integer.parseInt((String)token.nextElement());
		int number = 0;
		HashMap map = new HashMap();
		for(Integer i=small;i<large;i++){
			String str = i.toString();
			int length = str.length();
			map.clear();
			for(int k = 1;k<length;k++){
				//System.out.print(str.subSequence(length - k, length).toString()+","+str.subSequence(0, length - k).toString()+",");
				String temp = str.subSequence(length - k, length).toString()+str.subSequence(0, length - k).toString();
				int m = Integer.parseInt(temp);
				if(m<=large&&m>i){
					if(map.get(m)==null){
						number++;
						map.put(m, m);
					}
				}
			}
		}
		
		return number;
	}
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		int i = 0;
		Vector<String> outputs = new Vector<String>();
		try{
			File file = new File(input_path);
			BufferedReader reader =new BufferedReader(new FileReader(file));
			String line  = reader.readLine(); //skip number
			total_case = Integer.parseInt(line);
			while(i<total_case)
			{
				line = reader.readLine();
				
				Integer max = findMax(line);
				String decoded = "Case #"+(i+1)+": "+max;
				System.out.println(decoded);
				outputs.add(decoded);
				i++;
			}
			File file_o = new File(output_path);
			BufferedWriter writer =new BufferedWriter(new FileWriter(file_o));
			for(i=0;i<outputs.size();i++)
			{
				writer.write(outputs.get(i)+"\r\n");
			}
			writer.flush();
			reader.close();
			writer.close();
		}catch(Exception e){
			System.out.println(e.toString());
		}
	}

}
