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.*;
import java.lang.*;
class Source2 
{
	public static void main(String[] args) throws IOException 
	{
		String s,word,buffer;
		 FileReader input = new FileReader("C-small.in");
		 BufferedReader in = new BufferedReader(input);
		File file = new File("C-small.out");
		BufferedWriter out = new BufferedWriter(new FileWriter(file));

			s = in.readLine();
		int count= Integer.parseInt(s);

		int i=1;
		 while ((s = in.readLine()) != null && s.length() != 0)
		{
			 out.write("Case #"+(i++)+": ");
				Scanner scan =new Scanner(s);
				buffer="";
			
			
				long A =Integer.parseInt(scan.next());
				long B = Integer.parseInt(scan.next());
			
				
				long ans = calculatemn(A,B);


				out.write(ans+"\n");
		}


		 out.close();
	}


	public static long calculatemn(long A,long B)
	{
		long[][] recyclepair =new long[2000000][2];
		long count=0;
		boolean check=false;
		int re_i=0;

		for(long n=A ;n<=B;n++)
		{
			check=true;
			String stn =n+"";
			String stm =n+"";
			int length =stn.length();

			for(int i=1;i<length;i++)
			{
				stm = recycle(stn,i);
				
				
				long N= Long.parseLong(stn);
				long M =Long.parseLong(stm);

			
				if(M>N&&M<=B)
				{
					boolean pass =true;
					for(int j=0;j<re_i;j++)
					{
						if(recyclepair[j][0]==N&&recyclepair[j][1]==M)
						{
							pass=false;
						}
					}




					if(pass)
					{
					count++;

					recyclepair[re_i][0] =N;
					recyclepair[re_i][1] =M;
					re_i++;
					check=false;
					}
				}
			}

		}
		return count;
	}

	public static String recycle(String stn,int num)
	{

		String last = stn.substring(stn.length()-num,stn.length());

		String first =  stn.substring(0,stn.length()-num);

		return last+first;
	}
}
