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 problemc;

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 *
 * @author mayorandrew
 */
public class Main {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        BufferedReader input = null;
        try {
            input = new BufferedReader(new FileReader("input.txt"));
            FileOutputStream output = new FileOutputStream("output.txt");
            
            int N = Integer.parseInt(input.readLine());
            for(int i=0; i<N; i++){
                String[] line = input.readLine().split("\\ ");
                int a = Integer.parseInt(line[0]);
                int b = Integer.parseInt(line[1]);
                
                System.out.println("###" + i+":"+a+" - "+b);
                boolean[] check = new boolean[b-a+1];
                for(int j=0; j<b-a+1; j++){
                    check[j]=true;
                }
                int n = 0;
                for(int k=a; k<=b; k++){
                    String r = Integer.toString(k);
                    int l = r.length();
                    if(check[k-a]){
                        int nn = 0;
                        int[] numbers = new int[l];
                        for(int s=1; s<l; s++){
                            int num = Integer.parseInt(r.substring(l-s, l)+r.substring(0, l-s));
                            if(num>=a && num<=b && num!=k){
                                boolean found = false;
                                for(int j=1; j<l; j++){
                                    if(numbers[j]==num){
                                        found=true;
                                    }
                                }
                                if(!found){
                                    nn++;
                                    numbers[s]=num;
                                    check[num-a]=false;
                                    //System.out.println(k+" - "+num+" v");
                                }
                            }else{
                                numbers[s]=0;
                                //System.out.println(k+" - "+num);
                            }
                        }
                        n+=nn*(nn+1)/2;
                        //System.out.println("#" + "add " + nn);
                    }
                }
                output.write(("Case #"+(i+1)+": "+n+"\n").getBytes());
            }
            
            input.close();
            output.close();
        } catch (IOException ex) {
            Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
        }
    }
}
