import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;

public class Recycled {
	public static void main(String[] args) throws Exception{
		String inputFile = "C-small-attempt0.in";
		
		BufferedReader input = new BufferedReader(new InputStreamReader(new FileInputStream(inputFile)));
		BufferedWriter output = new BufferedWriter(new OutputStreamWriter(new FileOutputStream("output")));
		long num_cases = Long.parseLong(input.readLine());
		int current_case = 0;
		
		while (current_case < num_cases){
			current_case++;
			
			String[] fields = input.readLine().split(" ");
			int A = Integer.parseInt(fields[0]);
			int B = Integer.parseInt(fields[1]);
			int total = 0;
			
			for (int n = A; n < B; n++){
				for (int m = n+1; m <= B; m++){
					if (isRecycled(n,m)) total++;
				}
			}
			
			System.out.println("Case #" + current_case + ": " + total);
			output.write("Case #" + current_case + ": " + total + "\n");
		}
		output.close();
	}

	private static boolean isRecycled(int n, int m) {
		String sn = ""+n;
		String sm = ""+m;
		if (sn.length() != sm.length()) return false;
		int totaln = 0, totalm = 0;
		for (int i = 0; i < sn.length(); i++){
			totaln += sn.charAt(i);
			totalm += sm.charAt(i);
		}
		if (totaln != totalm) return false;
		for (int i = 0; i < sn.length()-1; i++){
			sm = sm.charAt(sm.length() - 1) + sm.substring(0, sm.length() - 1);
			if (sm.equals(sn)) return true;
		}
		return false;
	}
}

import java.io.*;
import java.util.*;
public class RecycledNumbers
{
	public static void main(String [] args) throws Exception
	{
		BufferedReader br = new BufferedReader(new FileReader("CI.txt"));

		String write = "";
		int i = Integer.parseInt(br.readLine());

		for(int j = 1; j <= i; j++)
		{
			String ra = br.readLine();
			int c = 0;

			Integer [] ir = c(ra.split(" "));
			
			for(int k = ir[0]; k < ir[1]; k++)
			{
				String number1 = "" + k;
				String number2 = "";
				int m = 0;
				HashSet <String> size= new HashSet <String> ();
				for(int l = 1; l < number1.length(); l++)
				{
					if(number1.charAt(0) <= number1.charAt(l))
					{
						number2 = number1.substring(l) + number1.substring(0,l);
						m = Integer.parseInt(number2);
						if(m <= ir[1] && m > k)
						{
							if(!size.contains(number2))
							{
								//System.out.println(k + " " + m);
								c = c + 1;
							}
							size.add(number2);
						}
					}
				}

			}
			String newLine = "\n";
			if(j == i)
				newLine = "";
			write = write + "Case #" + j + ": " + c + newLine;
			//System.out.println("Case #" + j + ": " + c);
		}

		BufferedWriter bw = new BufferedWriter(new FileWriter("CO.txt"));
		bw.write(write);
		bw.flush();
		bw.close();
		System.out.println(write);
	}

	static Integer [] c(String [] args)
	{
		Integer [] array = new Integer[args.length];
		for(int i = 0; i < args.length; i++)
		{
			array [i] = Integer.parseInt(args[i]);
		}
		return array;
	}

}