/*
 * 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.*;
import java.util.*;

public class recycled {

	private static int digits(int num) {
		
		int sol = 1;

		while (num / 10 != 0) {
			sol *= 10;
			num /= 10;
		}

		return sol;
	}

	/**
	 * @param args
	 * @throws IOException
	 */
	public static void main(String[] args) throws IOException {

		Scanner fe = new Scanner(new FileInputStream("/home/gllera/Desktop/data.in"));
		FileWriter fs = new FileWriter("/home/gllera/Desktop/data.out");

		int cases = fe.nextInt();

		for (int i = 0; i < cases; i++) {
			int a = fe.nextInt();
			int b = fe.nextInt();

			int sol = 0;

			TreeSet<Integer> tree = new TreeSet<Integer>();
			
			for (int n = a; n < b; n++) {
				
				tree.clear();
				int digits = digits(n);
				int idigits = 10;
				int n1 = n / digits;
				int n2 = n % digits;
				
				while ( digits != 1 )
				{
					int m = n2 * idigits + n1;
					if ( n < m && m <= b && !tree.contains(m) )
					{
						tree.add(m);
						sol++;
					}
					
					digits /= 10;
					idigits *= 10;
					
					n1 = n / digits;
					n2 = n % digits;
				}
			}

			fs.write("Case #" + (i + 1) + ": " + sol + '\n');
		}

		fe.close();
		fs.flush();
		fs.close();
	}
}
