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 codejam;

import java.awt.List;
import java.io.*;
import java.util.ArrayList;
import java.util.Vector;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 *
 * @author user
 */
public class CodeJam {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        FileReader fin = null;
        FileWriter fout = null;
        ArrayList<String> ar = new ArrayList<>();
        java.util.List<String> kr;
        try {
            fin = new FileReader("input.txt");
            fout = new FileWriter("Output.txt");
            BufferedWriter out = new BufferedWriter(fout);
            BufferedReader in = new BufferedReader(fin);
            int t;
            t = Integer.parseInt(in.readLine());
            int j = 0,A,B;
            String[] k;
            while (t > j) {
                
                int count = 0;
                ar.clear();
                k = in.readLine().split(" ");
                A = Integer.parseInt(k[0]);
                B = Integer.parseInt(k[1]);
                
                for (int i = A; i <= B; i++) {
                    ar.add(Integer.toString(i));
                }
                
                StringBuilder n;
                
                for (int m = 1; m < ar.size(); m++) {
                    
                    ArrayList<String> li = new ArrayList<>();
                    n = new StringBuilder(ar.get(m));
                    char c;
                    for (int i = 0; i < n.length(); i++) {
                        li.add(n.toString());
                        c = n.charAt(0);
                        n.deleteCharAt(0);
                        n.append(c);
                    }
                    
                    kr = ar.subList(0, m-1);
                    
                    for (int i = 0; i < li.size(); i++) {
                        if (kr.contains(li.get(i))) {
                            count ++;
                        }
                    }
                }
                out.write("Case #" + (j + 1) + ": " + count + "\n");
                out.flush();
                j ++;
            }
        } catch (IOException ex) {
            Logger.getLogger(CodeJam.class.getName()).log(Level.SEVERE, null, ex);
        } finally {
            try {
                fin.close();
                fout.close();
            } catch (IOException ex) {
                Logger.getLogger(CodeJam.class.getName()).log(Level.SEVERE, null, ex);
            }
        }
            
    }
}
