package codejam;

import java.util.*;
import java.io.*;

public class RecycledNumbers {
	public static void main(String[] args) throws IOException {
		BufferedReader in = new BufferedReader(new FileReader("in.txt"));
		PrintWriter out = new PrintWriter(new File("out.txt"));
		
		int T = Integer.parseInt(in.readLine());
		for (int t = 1; t <= T; ++t) {
			String[] parts = in.readLine().split("[ ]+");
			int A = Integer.parseInt(parts[0]);
			int B = Integer.parseInt(parts[1]);
			
			int cnt = 0;
			for (int i = A; i < B; ++i) {
				String str = String.valueOf(i);
				int n = str.length();
				String res = "";
				Set<Integer> seen = new HashSet<Integer>();
				for (int j = n - 1; j > 0; --j) {
					res = str.substring(j) + str.substring(0, j);
					int k = Integer.parseInt(res);
					if (k > i && k <= B) {
						//System.out.println("(" + i + ", " + k + ")");
						if (!seen.contains(k)) {
							++cnt;
							seen.add(k);
						}
					}
				}
			}

			out.println("Case #" + t + ": " + cnt);
		}
		
		in.close();
		out.close();
		System.exit(0);
	}
}

import java.awt.List;
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.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.StringTokenizer;

public class recycle {
	static int lower = 0;
	static int upper = 0;
	static int count = 0;
	static HashSet<String> num_list = new HashSet<String>();
	public static void PerformShift(int number) {
		int start = number;
		int numdigits = (int) Math.log10((double) number);
		int multiplier = (int) Math.pow(10.0, (double) numdigits);
		while (true) {
			//int q = number / 10;
			int r = number % 10;			
			number = number / 10;
			number = number + multiplier * r;			
					
			boolean flg = true;
			int bits = 0;			
			
			if(number != start && number >= lower && number <=upper) {
				num_list.add(number+":"+start);
				num_list.add(start+":"+number);	
			}
			
			if (number == start)
				break;
		}
	}

	public static void main(String[] args) throws IOException {
		BufferedReader in = new BufferedReader(new FileReader("input.txt"));
		BufferedWriter out = new BufferedWriter(new FileWriter("output.txt"));
		int no_cases = Integer.parseInt(in.readLine());
		for (int index = 0; index < no_cases; ++index) {
			StringTokenizer limits = new StringTokenizer(in.readLine()," ");
			lower = Integer.parseInt(limits.nextToken());
			upper = Integer.parseInt(limits.nextToken());
			int start = (int) System.currentTimeMillis();
			for (int i = lower; i <= upper; ++i) {
				if(i<9)
					continue;
				PerformShift(i);
			}
			if(index==no_cases-1)
				out.write("Case #" + (index + 1) + ": " + num_list.size()/2);
			else out.write("Case #" + (index + 1) + ": " + num_list.size()/2 + "\n");
			num_list.clear();
		}
		out.close();
	}
}
