
import java.util.Scanner;
import java.util.Set;
import java.util.TreeSet;
import java.io.File;
import java.io.IOException;
import java.io.FileWriter;
import java.io.BufferedWriter;

public class Recycle
{
	public static void main(String[] args)
	{
/*		Set<Integer> perms = getPermutations(123456);
		
		for(Integer i: perms)
			System.out.println(i);*/
	
		try
		{
			Scanner s = new Scanner(new File("recycle.in"));
			BufferedWriter w = new BufferedWriter(new FileWriter(new File("recycle.out")));
			int numCases = s.nextInt();
			s.nextLine();
			
			for(int n = 1;n <= numCases; n++)
			{
				int A = s.nextInt();
				int B = s.nextInt();
				int count = 0;
				for(int k = A; k <= B; k++)
				{
					count += getNumPairs(k, B);
				}
				
				w.write("Case #" + n + ": " + count + "\n");
			}
			
			w.flush();
			w.close();
		}
		catch (IOException e)
		{
			e.printStackTrace();
		}
	}
	
	public static int getNumPairs(int n, int B)
	{
		Set<Integer> possibles = getPermutations(n);
		int count = 0;
		for(Integer i : possibles)
			if(i > n && i <= B)
				count++;
		return count;
	}
	
	public static Set<Integer> getPermutations(int n)
	{
		Set<Integer> perms = new TreeSet<Integer>();
		char[] digits = String.valueOf(n).toCharArray();
		
		for(int firstPos = 1; firstPos < digits.length; firstPos++)
		{
			String toBuild = "";
			for(int k = 0; k < digits.length; k++)
				toBuild += digits[(firstPos + k) % digits.length];
			perms.add(Integer.parseInt(toBuild));
		}
		return perms;
	}
	

}
package codejam;
import java.io.*;
public class FileRead {
	String fileName;
	FileReader fr;
	BufferedReader br;
	FileRead(String fileName)
	{
		this.fileName=fileName;
		File f=new File("K:\\CodeJam\\Input\\"+fileName);//Create a file object
		
			FileReader fr;
			try {
				fr = new FileReader(f);
				br=new BufferedReader(fr);
			} catch (FileNotFoundException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}    	
	}
	//function to read next line.
	public String readNextLine(){
		String text=null;
		try {
			text=br.readLine();
		} catch (IOException e) {
			e.printStackTrace();
		}
		
		return text;
	}
	public int readNextInt(){
		int n = 0;
		try{
			n=Integer.parseInt(br.readLine().trim());
		}catch(Exception e){
			System.out.println("Invalid integer");
		}
		return n;
	}
	public int [] readNextIntArray(){
		int []n=null;
		try{
			String []numarray=br.readLine().split(" ");
			n=new int[numarray.length];
			for(int i=0;i<numarray.length;i++){
				n[i]=Integer.parseInt(numarray[i].trim());								
			}
		}catch(Exception e){
			System.out.println("Invalid integer");
		}
		
		return n;
	}
	public void close(){
		try {
			//fr.close();
			br.close();			
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}
	
	