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.*;
import java.util.HashSet;
import java.util.Set;

/**
 * Created by IntelliJ IDEA.
 * User: YC14RP1
 * Date: 4/14/12
 * Time: 12:57 AM
 * To change this template use File | Settings | File Templates.
 */
public class Test3 {


    public static void main(String[] args) throws FileNotFoundException {
        String path = "C:\\Users\\YC14rp1\\Downloads\\C-small-attempt0.in";
        try{
            // Open the file that is the first
            // command line parameter
            FileInputStream fstream = new FileInputStream(path);
            // Get the object of DataInputStream
            DataInputStream in = new DataInputStream(fstream);
            BufferedReader br = new BufferedReader(new InputStreamReader(in));
            String strLine;
            //Read File Line By Line
            strLine = br.readLine();
            int n = Integer.valueOf(strLine);
            for (int i=1;i<=n;i++) {
                strLine = br.readLine();
                String[] split = strLine.split(" ");
                String s1 = split[0];
                long d1 = Long.valueOf(s1);
                String s2 = split[1];
                long d2 = Long.valueOf(s2);
                int res = 0;
                for (long j=d1;j<=d2;j++) {
                    Set<Long> cSet = new HashSet<Long>();
                    String ss = String.valueOf(j);
                    for (int k=0;k<s1.length()-1;k++) {
                        String s = ss.substring(k+1)+ss.substring(0,k+1);
                        Long r = Long.valueOf(s);
                        if ((r>j) && (r>=d1) && (r<=d2)) {
                            if (!cSet.contains(r)) {
                                //System.out.println(j+"/"+r);
                                res++;
                            }
                            cSet.add(r);
                            //res++;
                        }
                    }
                }
                // Print the content on the console
                System.out.println("Case #" + i + ": " + res);
            }
            //Close the input stream
            in.close();
        } catch (IOException e) {
            e.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.
        }
    }

}
