import java.io.*;
import java.util.*;

class B
{
	public static void main(String[] args) 
	{
		try
		{
			BufferedReader br = new BufferedReader(new FileReader("B.in"));
			PrintWriter pw = new PrintWriter(new FileWriter("B.out"));
			int X = Integer.parseInt(br.readLine());

			for(int i=0; i<X; i++)
			{
				String[] S = br.readLine().split(" ");
				int A = Integer.parseInt(S[0]);
				int B = Integer.parseInt(S[1]);
				int R = 0;

				int x = 1;
				int n = 0;
				while(A/x > 0) {
					n++;
					x *= 10;
				}

				for(int j=A; j<B; j++) {
					Set<Integer> seen = new HashSet<Integer>();
					for(int k=1; k<n; k++) {
						int p1 = j % (int)Math.pow(10, k);
						int p2 = (int) Math.pow(10, n-k);
						int p3 = j / (int)Math.pow(10, k);
						int y = p1*p2 + p3;
						
						if(j < y && !seen.contains(y) && y <= B) {
							seen.add(y);
							R++;
						}
					}
				}

				pw.printf("Case #%d: %d\n", i+1, R);
				pw.flush();
			}
		}
		catch(Exception e)
		{ 
			e.printStackTrace();
		}
	}
}

package codejam2012.qualification;

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashSet;
import java.util.List;
import java.util.Scanner;
import java.util.Set;


public class RecycledNumbers {
		static String dir="/home/casatta/Scaricati/";
//	static String dir="data/";

	//	static String fname="B-large.in";
//	static String fname="C-small-attempt0.in";
	static String fname="C-large.in";
//	static String fname="RecycledNumbers";


	public void test(Scanner input, PrintWriter out, Long i) {
		int a=input.nextInt();
		int b=input.nextInt();

		int count=0;

		for(int j=a;j<=b;j++) {
			count=count+countGoodRecycled(j, b);

		}

		String result = "Case #" + (i+1) + ": " +count;
		out.println(result);
		System.out.println(result);
		System.out.println();
	}

	int countGoodRecycled(int val,int maxVal) {
		String valString=""+val;
		int length=valString.length();
		Set<Integer> results=new HashSet<Integer>();

		for(int i=length-1;i>0;i--) {
			if(valString.charAt(i)!='0') {
				String after =valString.substring(i);
				String before=valString.substring(0,i);
				int inverse=Integer.parseInt( after+before );
				if(inverse<=maxVal && val<inverse) {
//					System.out.println(val + "=" + inverse);
					results.add(inverse);
					
				}
			}

		}

		return results.size();

	}

	public void run() {


		try {
			String inputPath = dir + fname;

			Scanner input =new Scanner(new File(inputPath));
			FileWriter outFile = new FileWriter(inputPath + ".out");
			PrintWriter out = new PrintWriter(outFile);
			try {		
				Long testCases = input.nextLong();
				input.nextLine();
				long start=System.currentTimeMillis();
				for(Long i=0L ; i < testCases ; i++)
					test(input,out,i);
				System.out.println("elapsed:" + (System.currentTimeMillis()-start) );
			}
			finally {
				input.close();
				out.close();
			}
		}
		catch (IOException ex){
			ex.printStackTrace();
		}
	}

	public static void main(String[] args) {
		RecycledNumbers template = new RecycledNumbers();
		template.run();
	}


}
