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;
	}

}

package com.google;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;

public class RecycledNumbers {

	public static void main(String[] args) throws Exception{
		RecycledNumbers s = new RecycledNumbers();
		s.solve();
		
	}
	public void solve() throws Exception
	{
		int lines = Integer.parseInt(readLine());
		for(int i=0;i<lines;i++)
		{
			String line = readLine();
			if(line == null)
				break;
			String[] comps = line.split(" ");
			int A = Integer.parseInt(comps[0]);
			int B = Integer.parseInt(comps[1]);
			int count = 0;
			
			for(int j=A;j<=B;j++)
			{
				boolean[] a = new boolean[2000001];
				String n = Integer.toString(j);
				for(int k=0;k<n.length()-1;k++)
				{
					n =  n.charAt(n.length()-1) + n.substring(0,n.length()-1);
					String n2 = n;
					while(n2.charAt(0) == '0')
					{
						if(n2.length() == 0)
							break;
						n2 = n2.substring(1,n2.length());
					}
					int n1 = Integer.parseInt(n2);
					if(n1 < A || n1 > B || n1 <= j)
						continue;

					if(!a[n1])
					{
						count++;
						a[n1] = true;
					}
				}
			}
			if(i == lines-1)
				writeLine("Case #" + (i+1) + ": " + count);
			else
				writeLine("Case #" + (i+1) + ": " + count + "\n");
		}
		o.close();
	}
	BufferedReader f = null;
	public String readLine() throws Exception
	{
		if(f == null)
			f = new BufferedReader(new FileReader(new File("C:\\Users\\raj617\\workspace\\srm\\dat\\C-small-attempt0.in")));
		return f.readLine();
	}
	BufferedWriter o = null;
	public void writeLine(String line) throws Exception
	{
		if(o == null)
			o = new BufferedWriter(new FileWriter(new File("C:\\Users\\raj617\\workspace\\srm\\dat\\out.txt")));
		o.write(line );
		o.flush();
	}
}
