package Main;

import com.sun.deploy.util.ArrayUtil;
import org.apache.commons.lang3.ArrayUtils;

import java.io.*;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;

/**
 * Created with IntelliJ IDEA.
 * User: arran
 * Date: 14/04/12
 * Time: 3:12 PM
 * To change this template use File | Settings | File Templates.
 */
public class Round {
    public StringBuilder parse(BufferedReader in) throws IOException {
        StringBuilder out = new StringBuilder();
        String lineCount = in.readLine();

        for (int i = 1; i <= Integer.parseInt(lineCount); i++)
        {
            out.append("Case #"+i+": ");
            System.err.println("Case #"+i+": ");
            String line = in.readLine();
            String[] splits = line.split(" ");
            int p1 = Integer.valueOf(splits[0]);
            int p2 = Integer.valueOf(splits[1]);
            int r = pairRecyclable(p1, p2);
            out.append(r);

//            if (i < Integer.parseInt(lineCount))
                out.append("\n");
        }
        return out;
    }

    public static int pairRecyclable(int i1, int i2) {
        HashSet<String> hash = new HashSet<String>();
        for (int i = i1; i < i2; i++)
        {
            String istr = String.valueOf(i);
            if (istr.length() < 2) continue;
            for (int p = 0; p < istr.length() ; p++)
            {
                String nistr = istr.substring(p,istr.length()).concat(istr.substring(0,p));
                if (Integer.valueOf(nistr) < i1) continue;
                if (Integer.valueOf(nistr) > i2) continue;
                if (nistr.equals(istr)) continue;
                String cnistr = (Integer.valueOf(nistr) > Integer.valueOf(istr)) ?  istr + "," + nistr : nistr + "," + istr;
                hash.add(cnistr);
            }
        }
        return hash.size();
    }

    public static void main(String[] args) {
        InputStreamReader converter = null;
        try {
            int attempt = 0;
            String quest = "C";
//            String size = "small-attempt";
            String size = "large";
            converter = new InputStreamReader(new FileInputStream("src/resource/"+quest+"-"+size+".in"));
            BufferedReader in = new BufferedReader(converter);
            Round r = new Round();
            String str = r.parse(in).toString();
            System.out.print(str);
            FileOutputStream fos = new FileOutputStream(quest+"-"+size+".out");
            OutputStreamWriter osw = new OutputStreamWriter(fos);
            BufferedWriter bw = new BufferedWriter(osw);
            bw.write(str);
            bw.flush();
            bw.close();
        } catch (IOException e) {
            e.printStackTrace();
        }

    }
}

import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.PrintWriter;
import java.util.Scanner;
import java.util.Vector;


public class recycle {

	
	public static void main(String arg[]) throws FileNotFoundException
	{
		Scanner in=new Scanner(new FileReader("rec.in"));
		PrintWriter pw=new PrintWriter("ansRec.txt");
		int cases=in.nextInt();
		in.nextLine();
		
		for(int counter=1;counter<=cases;counter++)
		{
			int small=in.nextInt();
			int large=in.nextInt();
			
			int ans=0;

			for(int i=small;i<large;i++)
			{
				int length=(int)(Math.log10(i))+1;
								
				boolean flag=false;
				int label=i%10;
				int temp=i;
				
				for(int j=0;j<length;j++)
				{
					if(temp%10!=label)
					{
						flag=true;
						break;
					}
					else
					{
						temp=temp/10;
					}
				}
				
				boolean f2=false;
				
				Vector<Integer> vec=new Vector<Integer>();
				
				for(int j=1;j<length&&flag;j++)
				{
					int exponent=(int) (Math.pow(10,j));
					int lead=(int) (i/exponent);
					int residual=(i%exponent);
					
					if(residual/(exponent/10)==0)
						continue;
					
					int newI=(int) (Math.pow(10, (int)(Math.log10(lead)+1))*residual+lead);
					if(newI>i&&newI<=large&&!vec.contains(newI))
					{
						ans++;
//						System.out.print("("+i+", "+newI+") -- ");
						vec.add(newI);
						f2=true;
					}
					
//					System.out.println("for "+i+" checking with "+newI);
				}
//				if(f2) System.out.println();
				
			}
			
			pw.println("Case #"+counter+": "+ans);

		}
		pw.close();
	}
}
