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 {
    
    private ArrayList<Integer> input = new ArrayList<Integer>();
    public static void main(String argz[]) throws IOException{
        RecycledNumbers r = new RecycledNumbers();
        r.readInput();
        r.generateAndCheck();
    }
    
    public void generateAndCheck(){
        int caseNo = 0;
        for(int i = 0; i < input.size(); i += 2){
            int count = 0;
            int A = input.get(i);
            int B = input.get(i + 1);
            for(int n = A; n <= B; n++){
                for(int m = n + 1; m <= B; m++){
                    if(check(n, m)) count++;
                }
            }
            System.out.print("Case #" + (++caseNo) + ": ");
            System.out.println(count);
        }
    }
    
    public boolean check(int n, int m){
        StringBuilder N = new StringBuilder(String.valueOf(n));
        do{
            N.insert(0, N.charAt(N.length() - 1));
            N.deleteCharAt(N.length() - 1);
            if(Integer.parseInt(N.toString()) == m){
                return true;
            }
        } while(Integer.parseInt(N.toString()) != n);
        
        return false;
    }
    
    private void readInput() throws IOException{
        FileReader file = new FileReader("in.in");
        try {
            Scanner reader = new Scanner(file);
            int testCases = reader.nextInt();
            while (testCases > 0){
                input.add(reader.nextInt());
				input.add(reader.nextInt());
                testCases--;
            }         
        } catch (Exception e){
            System.err.println("Error: " + e.getMessage());
        }
    }
}