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.*;

public class Recycle {
	public void cal(String filename) throws NumberFormatException, IOException
	{
		BufferedReader in = new BufferedReader(new FileReader(filename));
		PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter("bar.txt")));
		int count = 1;
		String s = in.readLine();
		int all = Integer.parseInt(s);
		while((s = in.readLine()) != null)
		{
			int result = 0;
			if(count > all)
			{
				System.out.println("error");
				break;
			}
			String[] elements = s.split(" ");
			int start = Integer.parseInt(elements[0]);
			int end = Integer.parseInt(elements[1]);
			for(int i = start; i < end; i++)
			{
				for(int j = i + 1; j <= end; j++)
				{
					if(isRecycle(i,j))
					{
						result = result + 1;
					}
				}
			}
			out.println("Case #" + count +": " + result);
			count = count + 1;
		}
		out.close();
	}
	
	public Boolean isRecycle(Integer a, Integer b)
	{
		String a_string = a.toString();
		String b_string = b.toString();
		if(a_string.length() != b_string.length())
			return false;
		for(int i = 1; i < a_string.length(); i++)
		{
			String temp = a_string.substring(i, a_string.length());
			temp = temp.concat(a_string.substring(0, i));
			if(temp.equals(b_string))
				return true;
		}
		return false;			
	}
	
	public static void main(String[] args) throws NumberFormatException, IOException
	{
		Recycle r = new Recycle();
		r.cal("C-small-attempt0.in");
	}

}
