/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package recycled;

import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.TreeSet;

/**
 *
 * @author Alfred
 */
public class Main {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
    try {
            FileInputStream fstream = new FileInputStream("C-small-attempt0.in");
            DataInputStream in = new DataInputStream(fstream);
            BufferedReader br = new BufferedReader(new InputStreamReader(in));
            FileWriter outFile = new FileWriter("out.txt");
            PrintWriter out = new PrintWriter(outFile);
            String line;
            line = br.readLine();
            int cases = Integer.parseInt(line);
            for (int i=1; i<=cases;i++){
                line = br.readLine();
                String[] values = line.split(" ");
                int A = Integer.parseInt(values[0]);
                int B = Integer.parseInt(values[1]);
                int total=0;
                for (int n=A; n<=B;n++){
                    TreeSet<String> solutions = new TreeSet<String>();
                    for (int k=1;k<values[1].length();k++){
                        String m = circshift(n,k);
                        int mVal = Integer.parseInt(m);
                        if(mVal<=B && mVal!=n  && mVal> n && !m.startsWith("0") && m.length()==Integer.toString(n).length() )
                        {
                            solutions.add(m);
                        }                   
                    }
                    total+=solutions.size();
                }
                out.println("Case #"+i+": "+total);
            }
            in.close();
            out.close();
        } catch (Exception e) {//Catch exception if any
            System.err.println("Error: " + e.getMessage());
        }

}

    private static String circshift(int n, int k) {
        String nString=Integer.toString(n);
        int len=nString.length();
        String m =  nString.substring(len-k)+nString.subSequence(0, len-k);
        //System.out.println(n+" "+m);
        return m;
    }

}

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;


public class RecycledNumbers 
{
	public RecycledNumbers()
	{
		
	}
	public int getNumDigits(int x)
	{
		if(x == 0 || x == 1)
			return 1;
		int counter =0 ;
		int check = 1;
		while(check<=x)
		{
			counter ++ ;
			check*=10;
		}
		return counter;
	}
	public int traverse(int x, int i)
	{
		if(x<10)
			return x ;
		int y = x/((int)Math.pow(10,i+1));
		int lastDigits = x-(y * (int)Math.pow(10,i+1));
		return ((int)Math.pow(10, getNumDigits(y))*lastDigits )+ y;
	}
	public boolean isRecycled(int x, int y)
	{
		int numOFDigits = getNumDigits(x);
		int z = x ;
		for(int i=0 ; i <numOFDigits ; i++)
		{
			if(y == z)
				return true ;
			z = traverse(x , i);
		}
		return false ;
	}
	public int numOfRecycledNum(int a , int b)
	{
		int counter  = 0;
		for(int i =a ; i <= b ; i++)
		{
			for(int j = i+1 ; j <= b ; j++)
			{
				if(isRecycled(i, j))
				{
					counter ++ ;
				}
			}
		}
		return counter ;
	}
	public static void perform()
	{
		RecycledNumbers recycled= new RecycledNumbers();
		try {
			BufferedReader inputStream = new BufferedReader(new FileReader("C-small-attempt0.in"));
			PrintWriter outputStream = new PrintWriter(new FileWriter("Output.txt"));
			try
			{
			int numOfLines = Integer.parseInt(inputStream.readLine());
			for(int i=1 ; i<=numOfLines ; i++)
			{
				String line = inputStream.readLine();
				boolean firstNum = true ;
				String num1 = "", num2 = "";
				for(int j=0 ; j< line.length() ; j++)
				{
					if(line.charAt(j) == ' ')
					{
						firstNum = false ;
						j++;
					}
					if(firstNum)
						num1 += line.charAt(j);
					else
						num2 += line.charAt(j);
				}
				int x = Integer.parseInt(num1);
				int y = Integer.parseInt(num2);
				String toOutput = "Case #"+i+": ";
				toOutput += recycled.numOfRecycledNum(x, y);
				outputStream.println(toOutput);
			}
			}catch(Exception e)
			{
				//no input in the file
				//or there was a problem in one of the lines
				//or there is a line that doesn't exist
			}
			inputStream.close();
			outputStream.close();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
	public static void main(String args[])
	{
		perform();
	}
}
