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.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Scanner;

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

/**
 *
 * @author Akash Agrawal
 */
public class RN {
    
    public static boolean check(int n , int []arr)
    {
        for(int i=0;i<arr.length;i++)
        {
            if(n==arr[i])return false;
        }
        return true;
    }
    
    public static void main(String [] args) throws FileNotFoundException, IOException
    {
        Scanner scan= new Scanner(new File("Input.in"));
        int n=scan.nextInt();
        int cas=1;
        while(n--!=0)
        {
            String s1 = scan.next() , s2 = scan.next();
            int A=Integer.parseInt(s1);
            int B=Integer.parseInt(s2);
            //System.out.println(A+B);
            int count = 0;
            
            for(int i=A;i<B;i++)
            {//System.out.println(i);
                String temp = Integer.toString(i);
                int ar[] = new int[s1.length()-1];
                int ind=0;
                for(int a=0;a<ar.length;a++)
                {
                    ar[a]=-1;
                }
                for(int j=1;j<s1.length();j++)
                {
                    
                    String temps = temp.substring(j) + temp.substring(0,j);
                    int C=Integer.parseInt(temps);
                    //System.out.println(s1.substring(0,j));
                    if(C>i && C<=B && check(C,ar))
                       {
                           count++;
                           //System.out.println(i+" "+C);
                           ar[ind++]=C;
                       }
                    
                }
                
                
            }
            System.out.println("Case #"+cas+++": "+count);
            
        }
        
    }
    
}
