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.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;


public class RecycledNumbers {
	static int caso=0;	
	static int valor=0;
	static String output="";
	static String thisline="";
	static String filesalida="/home/rik/filenumbers.txt";
	static String n1;
	static String n2;
	
	public static void analize(String[] numbers){
		n1=numbers[0];
		n2=numbers[1];	
		valor=0;
		for(int x=Integer.parseInt(n1);x<=Integer.parseInt(n2);x++){
				runString(String.valueOf(x));		
		}	
		caso++;
		output+="Case #"+caso+": "+valor+"\n";
	}	
	
	public static void runString(String num){	
		for(int x=1;x<num.length();x++){
			String inic=num.substring(0, x);
			String from=num.substring(x, num.length());			
			if(Integer.parseInt(from+inic)>Integer.parseInt(num)){
				if(Integer.parseInt(inic+from)>=Integer.parseInt(n1)&&Integer.parseInt(inic+from)<=Integer.parseInt(n2)&&Integer.parseInt(from+inic)>=Integer.parseInt(n1)&&Integer.parseInt(from+inic)<=Integer.parseInt(n2)){
					valor++;
				}else{
					continue;
				}
			}			
		}		
	}
	
	public static void readFile(String filename){
		BufferedReader entrada;
		BufferedWriter salida;
		try {
		entrada = new BufferedReader(new FileReader(filename));
		entrada.readLine();
		while(entrada.ready()){
			String[] numbers;
			numbers=entrada.readLine().split(" ");
			analize(numbers);			
		}
		}catch (Exception e){
			e.printStackTrace();
		}
		System.out.println(output);
		try {
			salida= new BufferedWriter(new FileWriter(filesalida));
			salida.write(output);
			 try {
	                if (salida != null) {
	                    salida.flush();
	                    salida.close();
	                }
			 } catch (IOException ex) {
	                ex.printStackTrace();
	            }  
		} catch (IOException e) {
			e.printStackTrace();
		}
		
	}
	public static void main (String args[]){
		System.out.print("file path: ");
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));	
		   try {
			   	 String userinput;
		         userinput = br.readLine();
		         readFile(userinput);
		      } catch (IOException ioe) {
		         System.out.println("IO error");
		         System.exit(1);
		      }   
		
	}	
}
