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.BufferedReader;
import java.io.FileReader;
import java.util.ArrayList;

public class Run3
{
	private static class Pair
	{
		private String n;
		private String m;
		
		public Pair(String n, String m)
		{
			this.n = n;
			this.m = m;
		}
		
		public String getStringN()
		{
			return n;
		}
		
		public String getStringM()
		{
			return m;
		}
		
		public int getIntegerN()
		{
			return Integer.parseInt(n);
		}
		
		public int getIntegerM()
		{
			return Integer.parseInt(m);
		}
		
		@Override
		public boolean equals(Object obj)
		{
			Pair pair = (Pair)obj;
			if ((pair.getStringN().equals(this.n) && pair.getStringM().equals(this.m)) ||
				(pair.getStringN().equals(this.m) && pair.getStringM().equals(this.n)))
			{
				return true;
			}
			else
			{
				return false;
			}
		}
		
		@Override
		public String toString()
		{
			return n+" "+m;
		}
	}
	public static void main(String[] args)
	{
		String path = "files/C-small-attempt1.in";
		
		int T = 0;
		ArrayList<Integer> A = new ArrayList<Integer>();
		ArrayList<Integer> B = new ArrayList<Integer>();
		
		ArrayList<Pair> pairs = new ArrayList<Pair>();
		try
		{
			boolean isFirstLine = true;
			
			FileReader FR = new FileReader(path);
			BufferedReader BR = new BufferedReader(FR);
			String str = "";
			
			while((str=BR.readLine())!=null)
			{
				if (isFirstLine)
				{
					T = Integer.parseInt(str);
					isFirstLine = false;
				}
				else
				{
					String[] temp = str.split(" ");
					
					A.add(Integer.parseInt(temp[0]));
					B.add(Integer.parseInt(temp[1]));
				}
			}
		}
		catch (Exception e)
		{
			e.printStackTrace();
		}
		
		for (int i = 0; i < T; i++)
		{
			pairs.clear();
			int start = A.get(i);
			int end = B.get(i);
			
			for (int j = start; j <= end; j++)
			{
				String n = String.valueOf(j);
				String m = "";
				for (int x = 1; x < n.length() ; x++)
				{
					m = moveDigital(n, x);
					if (start <= Integer.parseInt(n) && Integer.parseInt(n) < Integer.parseInt(m) && Integer.parseInt(m) <= end)
					{
						Pair pair = new Pair(n, m);
						if (!pairs.contains(pair))
						{
							pairs.add(pair);
						}
					}
				}
			}
			System.out.println("Case #"+(i+1)+": "+pairs.size());
		}
	}
	
	static public String moveDigital(String number, int digitals)
	{
		return number.substring(number.length()-digitals, number.length())+number.substring(0, number.length()-digitals);
	}
}