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.HashSet;
import java.util.Scanner;

/**
 * Created by IntelliJ IDEA.
 * User: singh
 * Date: 14/4/12
 * Time: 4:46 AM
 * To change this template use File | Settings | File Templates.
 */
public class RecycleNumbers {
    public static void main(String[] args) throws IOException {
//        Scanner sc=new Scanner(System.in);
        Scanner sc=new Scanner(new File("C:\\Users\\singh\\Documents\\codejam\\input.in"));
        int testCases=sc.nextInt();
        String outPut="";
        PrintWriter writer=new PrintWriter("C:\\Users\\singh\\Documents\\codejam\\out0.in");
//        BufferedWriter bf=new BufferedWriter(new FileWriter("C:\\Users\\singh\\Documents\\codejam\\out0.txt"));
        for(int iterator=0;iterator<testCases;iterator++)
        {
            HashSet<String> set=new HashSet<String>();
            int counter=0;
            int A=sc.nextInt();
            int B=sc.nextInt();
//            int BFirst=Integer.parseInt((B+"").charAt(0)+"");
            for(int currentN=A;currentN<B;currentN++)
            {
                String nString=currentN+"";
                if(iterator==3)
                {
                    System.out.println();
                }
//                int nFirst=Integer.parseInt(nString.charAt(0)+"");
//                if(nFirst>BFirst)
//                {
//                    break;
//                }
//                if(!nString.endsWith("0"))
//                {
                for(int i=1;i<=nString.length()-1;i++)
                {
                    String nSubString=nString.substring(nString.length()-i,nString.length())+nString.substring(0,nString.length()-i);
                    if(!nSubString.startsWith("0"))
                    {
                    if(!nString.equals(nSubString))
                    {
                    int nSubInt=Integer.parseInt(nSubString);
                    if(nSubInt<=B && nSubInt>(Integer.parseInt(nString)))
                    {
                        if(!set.contains(nString+","+nSubString))
                        {
                            set.add(nString+","+nSubString);
                            counter++;
                        }
                    }
                    }
                    }
                }
//                }
            }
//            }
         outPut+="Case #"+(iterator+1)+": "+counter+"\n";
        }
           writer.write(outPut);
            writer.flush();
            writer.close();
    }
}
