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 Problem3;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.StringTokenizer;

/**
 *
 * @author Mohammed
 */
public class Pairs {
  
    static int in[][], out[];
    static int found;
    private static void readFile(String fileName) throws FileNotFoundException, IOException {
        BufferedReader br = new BufferedReader(new FileReader(fileName));
        String line;
        int x = Integer.parseInt(br.readLine());

        in = new int[x][2];
        out = new int[x];

        for (int i = 0; i < x; i++) {
            line = br.readLine();
            StringTokenizer st = new StringTokenizer(line);
            int j = 0;
            while (st.hasMoreTokens()) {
                in[i][j++] = Integer.parseInt(st.nextToken());
            }

        }
    }
    public static void main(String[] args) throws FileNotFoundException, IOException {
        readFile("data");
        manipulate();
        writeOutput("output.txt");
    }

    private static void manipulate() {
           for (int i = 0; i < in.length;i++){
               int start = in[i][0];
               int end = in[i][1];
               found = 0;
               for (int j = start; j<=end; j++){
                   String numString = j+"";
                   int numValue = j;
                 //  System.out.println(numString);
                   for(int k = 1; k < numString.length(); k++){
                       if (((char)(numString.charAt(k))) == '0')
                           continue;
                       String firstString = numString.substring(0,k);                   
                       String secondString = numString.substring(k,numString.length());                     
                       String resultString = secondString + firstString;
                       int num = Integer.parseInt(resultString);
                       System.out.println(i + " " +resultString);
                       if ((num>numValue)&&(num>=start)&&(num<=end)){
                           found++;
                           System.out.println("hello");
                       }
                   }
               }
               out[i] = found;
           }
    }
      private static void writeOutput(String string) throws IOException {
        BufferedWriter bw = new BufferedWriter(new FileWriter(string));
        for (int i = 0; i < out.length; i++) {
            bw.write("Case #" + (i + 1) + ": " + out[i]);
            if (i != out.length - 1) {
                bw.write("\r\n");
            }
        }
        bw.close();
    }
    
}
