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.util.*;
import java.lang.*;
import java.io.*;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
public class main {

	/**
	 * @param args
	 */
	public static String lireString() // lecture d'une chaine
	{
		String ligne_lue = null;
		try {
			InputStreamReader lecteur = new InputStreamReader(System.in);
			BufferedReader entree = new BufferedReader(lecteur);
			ligne_lue = entree.readLine();
		} catch (IOException err) {
			System.exit(0);
		}
		return ligne_lue;
	}
	
	public static Scanner s =new Scanner(System.in);
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		
		System.out.println("Input");
	
	String filename = "C:\\A-small-attempt1.in";
	String ligne = "";
	int nbrLigne = 0, i=0, j=0,rech=0;
	char cchar=' ';
	File f = new File(filename);
	if (f.exists()) {
		System.out.println("File exists");
	} else {
		System.out.println("File does not exist");
	}
	
String aa="ejpmyslckdxvnribtahwfougqz ";
String bb="ourlangeismpbtdhwyxfckjvzq ";
String  g="";

	try {
		FileInputStream fStream = new FileInputStream(filename);
		BufferedReader in = new BufferedReader(new InputStreamReader(
				fStream));
		if (in.ready()) {
			ligne = in.readLine();
			nbrLigne = Integer.parseInt(ligne);
			String res[]=new String[nbrLigne];
			for (j = 0; j < nbrLigne; j++) {
				ligne = in.readLine();
				
				for (i = 0; i < ligne.length(); i++) {
						g+=bb.charAt(aa.indexOf(ligne.charAt(i)));
					}
				System.out.println("Case #"+(j+1)+": "+g);
				g="";
			}
		}
	}catch (IOException e) {
		System.out.println("File input error");
	}
	}
}
