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;
	}
}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package q3;

import java.io.*;

/**
 *
 * @author ken
 */
public class Q3 {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {

        try {
            FileInputStream fstream = new FileInputStream("C-small-attempt0.in");
            
            DataInputStream in = new DataInputStream(fstream);
            BufferedReader br = new BufferedReader(new InputStreamReader(in));
            String strLine;
            
            int inputSize = Integer.parseInt(br.readLine());
            int currentCase = 1;
            //while ((strLine = br.readLine()) != null) {
            while (inputSize > 0) {
                strLine = br.readLine();
                int min = Integer.parseInt(strLine.split(" ")[0]);
                int max = Integer.parseInt(strLine.split(" ")[1]);
                
                int counter = 0;
                for (int i = min; i <= max; i++) {
                    
                    for (int j = i; j <= max; j++) {
                       if (isRecycled(Integer.toString(i), Integer.toString(j))) {
                           counter ++;
                       }
                    }
                }
                System.out.println("Case #" + currentCase + ": " + counter);
                inputSize --;
                currentCase++;
            }
            
            in.close();
            
            //System.out.println("hello".substring(0, 1));
            //System.out.println("hello".substring(1));
            //System.out.println(isRecycled("12345","34512"));
            
        } catch (Exception e) {
            System.err.println("Error: " + e.getMessage());
        }

    }
    
    public static boolean isRecycled(String x, String y) {
        if (x.length() != y.length()) {
            return false;
        }
        for (int i = 1; i < x.length() + 1; i++) {
            String newString =  x.substring(i)+x.substring(0, i);
            //System.out.println(newString);
            if (newString.equalsIgnoreCase(y) && !newString.equalsIgnoreCase(x))
                return true;
        }
        return false;
    }
}
