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

public class Prac3 {
	public static String shift(String i){
		String num=i;
		String num2=num.substring(num.length()-1,num.length())+num.substring(0,num.length()-1);
		return num2;
	}
	public static boolean rec(Integer a, int b){
		Integer original=a;
		
		
		
		return false;
	}
	public static void main(String[] arg){
		try{
			Scanner in=new Scanner(new File("sample"));
			//BufferedReader br=new BufferedReader(new FileReader("sample"));
			//int numCases=in.nextInt();//br.readLine();br.readLine();
		//	BufferedWriter bw=new BufferedWriter(new FileWriter("output.txt"));
			int numCases=in.nextInt();
			int counter=1;
			//in.nextLine();
			counter=1;
			while (counter!=numCases+1){
				Integer A=in.nextInt();
				Integer B=in.nextInt();
				ArrayList<Integer> track=new ArrayList<Integer>();
				if (B.toString().length()<2){
					System.out.println("Case #"+counter+": "+0);
				}else{
					for (Integer i=A;i<=B;i++){
						Integer original=i;
						String marker=shift(original.toString());
				
						while (!(marker.equals(original.toString()))){
							//System.out.println(marker+ " " +original);
							if (Integer.parseInt(marker)>original 
									&& Integer.parseInt(marker)<=B 
									){//&& !(track.contains(marker))
								track.add(Integer.parseInt(marker));
								track.add(original);
							//	marker=original.toString();
								marker=shift(marker);
							}else{
								marker=shift(marker);
							}
						    //System.out.println(marker==original);
							
						}
					}
					System.out.println("Case #"+counter+": "+track.size()/2);
				}
				
				
				counter++;
			}
		
		}catch (FileNotFoundException e){
			
		}catch (IOException e){
		}
	}
}