import java.util.HashMap;
import java.util.HashSet;
import java.util.Scanner;

public class Recycle {

	private static HashMap<Integer, HashSet<Integer>> map = new HashMap<Integer, HashSet<Integer>>();
	private static HashSet<Integer> toSkip = new HashSet<Integer>();
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		Scanner reader = new Scanner(System.in);
		int T = reader.nextInt();
		for (int tc = 1; tc <= T; tc++) {
			int a = reader.nextInt();
			int b = reader.nextInt();
			long before = System.currentTimeMillis();
			int res = doit(a, b);
			System.out.printf("Case #%d: %d\n", tc, res);
			long after = System.currentTimeMillis();
//			System.out.println("time taken: " + (after - before));
		}
	}

	private static int doit(int a, int b) {
		int count = 0;
		HashSet<Integer> skip = new HashSet<Integer>(toSkip);
		for (int i = a; i <= b; i++) {
			if (skip.contains(i))
				continue;
			HashSet<Integer> arr = generate(i);
//			if(arr.size() > 1) {
//				map.put(i, arr);
//			}
			// System.out.println(i + " --> " +
			// Arrays.deepToString(arr.toArray()));
			int temp = 0;
			if (arr.size() > 1) {
				for (int x : arr) {
					if (x >= a && x <= b) {
						temp++;
						skip.add(x);
					}
				}
				count += temp * (temp - 1) / 2;
			}
//			System.out.println("not skipping " + i + " gen: " + arr.size()+ " " + (temp * (temp - 1) / 2));
		}
		return count;
	}

	private static HashSet<Integer> generate(int num) {
		if(map.containsKey(num)) {
			HashSet<Integer> list = map.get(num);
			return list;
		}
		HashSet<Integer> list = new HashSet<Integer>();
		String s = "" + num;
		list.add(num);
		int len = s.length();
		for (int i = 1; i < len; i++) {
			String temp = s.substring(i) + s.substring(0, i);
			// System.out.println("temp: " + temp);
			if (temp.charAt(0) == '0')
				continue;
			int x = Integer.parseInt(temp);
			if( x <= 2000000) {
				list.add(x);
			}
		}
		if(list.size() > 1) {
			map.put(num, list);
		} else {
			toSkip.add(num);
		}
		return list;
	}

}

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;
import java.util.StringTokenizer;


public class G2 
{
	 private Scanner reader;
	 private FileWriter fstream;
	 private BufferedWriter out;
	 String nextline;
	 int noLines;
	 int intA;
	 int intB;
	 int lineIndex=1;
	 int value=0;
	 
	 
	 public boolean isValid(int n,int m)
	 {
		 return (!(n==m)&&(intA<=n)&&(n<m)&&(m<=intB));
		 	
	 }
	 public void initiateFiles()
	{
			try 
			{
				
				reader = new Scanner(new File("src/resources/C-small-attempt0.in"));
				String nextline = reader.nextLine();
				noLines = new Integer(nextline);
				System.out.println(noLines);
				fstream = new FileWriter("out.txt");
				out = new BufferedWriter(fstream);
				
				process();
				out.close();
				
			}
			catch (Exception e) {
				// TODO: handle exception
			}
	}
	 public void process() throws IOException
	 {
		 while (reader.hasNext()) 
		{
			 	value=0;
			 	nextline = reader.nextLine();
			 	System.out.println("Case #"+(lineIndex)+": ");
	            out.write("Case #"+(lineIndex++)+": ");
	            StringTokenizer allwords = new StringTokenizer(nextline);
	            intA= new Integer(allwords.nextToken());
	            intB= new Integer(allwords.nextToken());
	            System.out.println(intA+"    "+intB);
	            
	            int n,m=0;
	            for(n=intA;n<=intB;n++)
	            {
	            	System.out.println(n+"    "+m);
	            	String ns=""+n;
	            	
	            	for(int i=1;i<=ns.length();i++)
	            	{
	            		//System.out.println(i);
	            		String S2=ns.substring(ns.length()-i);
	            		
	            		if(S2.charAt(0)=='0')
	            			continue;
	            		String S1=ns.substring(0,ns.length()-i);
	            		
	            		String ms=S2+S1;
	            		m=new Integer(ms);
	            		//System.out.println(isValid(n, m));
	            		if(isValid(n, m))
	            		{
	            			value++;
	            		}
	            		
	            	}
	            }
	            out.write(value+"\n");
	            

	       }
	 }
	 
	public static void main(String []args)
	{
		G2 obj=new G2();
		obj.initiateFiles();
		
		
		
	}

}
