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 googlejam2012qrc;

import java.io.*;
/**
 *
 * @author Vincent
 */
public class GoogleJam2012QRC {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
       try{
            //Prepare the reader
            BufferedReader in = new BufferedReader( new FileReader("inputFile.txt"));
            BufferedWriter out = new BufferedWriter(new FileWriter("outputFile.txt"));
            
            //Get the amount of cases to be solved
            String str = in.readLine();
            int caseCount = Integer.parseInt(str);
            
            //For each test case
            for(int i = 0; i < caseCount; i++){
                //Get the line of the problem
                str = in.readLine();
                
                String[] problemData = str.split(" ");
                
                int lowerBound = Integer.parseInt(problemData[0]);
                int upperBound = Integer.parseInt(problemData[1]);
                int recycledCount = 0;
                
                for(int x = lowerBound; x <= upperBound; x++){
                    for(int y = x+1; y <= upperBound; y++){
                        String sx = ""+x;
                        String sy = ""+y;
                        if(sx.length() == sy.length()){
                            boolean matchFound = false;
                            for(int j = 1; j < sx.length() && !matchFound; j++){
                                String temp = sy;
                                sy = temp.substring(1) + temp.charAt(0);
                                if(sx.compareTo(sy) == 0){
                                    recycledCount++;
                                    matchFound = true;
                                }
                            }
                        }
                    }
                }
                
                out.write("Case #" + (i+1) + ": ");
                out.write("" + recycledCount);
                
                out.newLine();
            }
            in.close();
            out.close();
        }
        catch (Exception e){
            System.out.println("Read Failed");
        }
    }
}
