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 recyclednumbers;

import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.util.Vector;

/**
 *
 * @author Kholoud
 */
public class RecycledNumbers {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        try {
            FileInputStream ifstream = new FileInputStream("C:\\Users\\Kholoud\\Downloads\\C-small-attempt0.in");
            DataInputStream in = new DataInputStream(ifstream);
            BufferedReader br = new BufferedReader(new InputStreamReader(in));
            int n = Integer.parseInt( br.readLine());
            String line;
            for(int i = 0;i<n;i++)
            {
                int count = 0;
                line = br.readLine();
                int A = Integer.parseInt(line.split(" ")[0]);
                int B = Integer.parseInt(line.split(" ")[1]);
                Vector<String> rotatedNumbers;
                for(int num = A;num<=B;num++)
                {
                    rotatedNumbers = new Vector<String>();
                    String rotatedNum = String.valueOf(num);
                    for(int j = 0;j<String.valueOf(num).length()-1;j++)
                    {
                        rotatedNum = rotate(rotatedNum);
                        if(num < Integer.parseInt(rotatedNum) &&Integer.parseInt(rotatedNum) <= B && !rotatedNumbers.contains(rotatedNum))
                        {
                            rotatedNumbers.add(rotatedNum);
                            count++;
                        }
                    }
                }
                System.out.println("Case #" + (i + 1) + ": " + count);
            }
            
        } catch (Exception e) {
            System.out.print(e.toString());
        }
    }
    public static String rotate(String num)
    {     
        String rotated = num.charAt(num.length()-1) + num.substring(0, num.length()-1);       
        return rotated;
    }
}
