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.FileNotFoundException;
import java.util.Formatter;
import java.util.LinkedList;
import java.util.Scanner;


public class Main {
public static void main(String[] arg) throws FileNotFoundException
{
	Scanner scan =new Scanner(System.in);
	LinkedList<String> lilo=new LinkedList<String>();
	int t=scan.nextInt();
	for(int j=0;j<t+1;j++)
	{
		String str=scan.nextLine();
		lilo.add(str);
	}
	
	String[] str=lilo.toArray(new String[lilo.size()]);
	
	Formatter form=new Formatter("exoC.txt");
	for(int i=0;i<str.length;i++)
	{
		int u,v;
		try{
		String s=new String(str[i]);
		Scanner se=new Scanner(s);
		u=se.nextInt();
		v=se.nextInt();
		int q=calcul(u,v);
		int k=i;
		form.format("Case #"+k+": "+q+"\n");
		}catch(Exception e)
		{
			
		}
	}
	form.close();
	System.out.println("fin");
}
public static int calcul(int n,int m)
{
	int i=0;
	Methode met=new Methode();
	for(int j=n;j<=m;j++)
	{
		Integer v=new Integer(j);
		for(int k=j+1;k<=m;k++)
		{
			Integer u=new Integer(k);
			if((met.text(v.toString(), u.toString())))
			{
				i++;
			}
		}
	}
	return i;
}
}
