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;
	}

}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package googlecodejam;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;

/**
 *
 * @author Muhammad Zahran
 */
public class recycleNumber 
{
     public static void main(String[] args) throws IOException 
    {
        PrintWriter w =  new PrintWriter(new FileWriter("out.txt"));
        BufferedReader r = new BufferedReader(new FileReader("input.txt")); 
        int testcases = Integer.parseInt(r.readLine());
        for (int i = 0; i < testcases; i++) 
        {
            int result=0;
            
            String[] tokens = r.readLine().split(" "); 
            String strA = tokens[0];
            int a = Integer.parseInt(tokens[0]);
            int b = Integer.parseInt(tokens[1]);            
            String strB = tokens[1];
            
            int currentNo = a;
            while(true)
            {                      
                if(currentNo > b)
                    break;
                int scratch = currentNo;             
                String strScratch = String.valueOf(currentNo);
                
                for (int d = 1; d < strScratch.length(); d++) 
                {
                     String sub1 = strScratch.substring(strScratch.length()-d,strScratch.length()); //LSD
                     String sub2 = strScratch.substring(0,strScratch.length()-d); //MSD
                     
                    if(!sub1.substring(0, 1).equals("0"))
                    {
                        String strRotated = sub1+sub2;
                        if(!strRotated.equals(strScratch))
                        {
                            int rotated = Integer.parseInt(strRotated);
                            if(rotated <= b && rotated > scratch)
                            {
                              //  w.println(scratch + " : "+rotated);
                               // System.out.println(scratch + " : "+rotated); 
                                result++;
                            }
                        }                    
                    }        
                }
                      
               currentNo++;               
            }
              int asd = i+1;
              w.println("Case #" + asd + ": " + result);
              System.out.println("Case #" + asd + ": " + result);                                  
        }
        
         w.close();
    }
    
}
