import java.io.*;

class code1
{
	public static void main(String args[]) throws Exception 
	{
		File ii = new File ("C-small-attempt1.in");
		FileInputStream fis = new FileInputStream(ii);
		BufferedReader  br = new BufferedReader(new InputStreamReader (fis));
		int cases = Integer.parseInt(br.readLine());
		FileOutputStream fout = new FileOutputStream ("output.txt");
		DataOutputStream dout = new DataOutputStream (fout);
		int total=0;
		for(int i=0;i<cases;i++){
		String temp = br.readLine();
		String parts [] = temp.split(" ");
		int lower = Integer.parseInt(parts[0]);
		int upper = Integer.parseInt(parts[1]);
		System.out.println(lower+" "+upper);
		
		for(int j=lower;j<=upper;j++)
		{
			int abc = j;int length=0;
			if(j<10)continue;
			while (abc!=0){abc/=10;length++;}
			abc=j;
			for(int m=0;m<length-1;m++){
				int shift = abc%10;
				abc=abc/10;
				System.out.println("hi "+j);
				abc=abc+shift*power(10,length-1);
				if(abc<=upper&&shift!=0&&abc>j)total++;
				System.out.println(total);
			}
		}
 		dout.writeBytes("Case #"+(i+1)+ ": "+total+"\n");
 		total=0;
		}//for close
		
	}

	private static int power(int i, int j) {
		int no=1;
		for(int a=0;a<j;a++){no=10*no;}
		return no;
	}
}
import java.io.File;
import java.io.PrintWriter;
import java.util.*;
import java.util.jar.JarEntry;

/**
 * Created with IntelliJ IDEA.
 * User: vitaly
 * Date: 4/14/12
 * Time: 9:24 AM
 * To change this template use File | Settings | File Templates.
 */
public class Main {

    public static int bruteForce(int start, int end) {
        Set<String> set = new HashSet<String>();
        for (int k = start; k <= end; k++) {
            String repr = Integer.toString(k);
            for (int i = 1; i < repr.length(); i++) {
                String a = repr.substring(0, i);
                String b = repr.substring(i, repr.length());
                int comb = Integer.valueOf(b + a);
                if (comb > k & comb >= start && comb <= end) {
                    String c = "" + k + ":" + comb;
                    set.add(c);
                }
            }
        }
        return set.size();
    }

    public static void main(String[] args) throws Exception {

        Scanner scanner = new Scanner(new File("C-small-attempt0.in"));
        PrintWriter pw = new PrintWriter(new File("google.out"));

        int n = scanner.nextInt();
        for(int i = 0; i < n; i++) {
            int start = scanner.nextInt();
            int end = scanner.nextInt();
            int comb = bruteForce(start, end);
            pw.print(String.format("Case #%d: %d%n", i + 1, comb));
        }


        scanner.close();
        pw.close();


    }

}
