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;
	}
}

package midnighter.googlejam.y2012;

import java.io.FileReader;
import java.io.FileWriter;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

public class QualificationC
{
	static final String inFileName = "inputs/C-small-attempt0.in";
	static final String outFileName = "outputs/C-small.out";
	

    Scanner in;
    PrintWriter out;
   
    public int oneCase()
    {
    	int A = in.nextInt();
    	int B = in.nextInt();
    	int res = 0;
    	for (int i = A; i <= B; i++)
    	{
    		int d = 1, c = i;
    		while ((c /= 10) > 0)
    			d++;
    		int v = i;
    		for (int k = 0; k < d - 1; k++)
    		{
    			int nw = v % 10;
    			for (int j = 0; j < d - 1; j++)
    				nw *= 10;
    			v = v / 10 + nw;
    			if (v == i)
    				break;
    			if (nw != 0 && v <= B && v > i)
    				res++;
    		}
    	}
    		
    	return res;
    }
   
    public void run() throws Exception
    {
        in = new Scanner(new FileReader(inFileName));
        out = new PrintWriter(new FileWriter(outFileName));
       
        int nCases = in.nextInt();
        in.nextLine();
        for (int c = 1; c <= nCases; c++)
            out.println("Case #" + c + ": " + oneCase());
       
        out.flush();
        out.close();
        in.close();
    }
   
    public static void main(String[] args) throws Exception
    {
        new QualificationC().run();
    }
}
