import java.io.*;
import java.util.*;

public class C {

    void solve() throws IOException {
        in("C-large.in"); out("C-large.out");

        long tm = System.currentTimeMillis();
        boolean[] mask = new boolean[2000000];
        int[] r = new int[10];
        int t = readInt();
        for (int cs = 1; cs <= t; ++cs) {
            int a = readInt();
            int b = readInt();
            int ans = 0;
            for (int m = a + 1; m <= b; ++m) {
                char[] d = String.valueOf(m).toCharArray();
                int c = 0;
                for (int i = 1; i < d.length; ++i) {
                    if (d[i] != '0' && d[i] <= d[0]) {
                        int n = 0;
                        for (int j = 0; j < d.length; ++j) {
                            int jj = i + j;
                            if (jj >= d.length) jj -= d.length;
                            n = n * 10 + (d[jj] - '0');
                        }
                        if (n >= a && n < m && !mask[n]) {
                            ++ans;
                            mask[n] = true;
                            r[c++] = n;
                        }
                    }
                }
                for (int i = 0; i < c; ++i) {
                    mask[r[i]] = false;
                }
            }
            println("Case #" + cs + ": " + ans);
            //System.out.println(cs);
        }
        System.out.println("time: " + (System.currentTimeMillis() - tm));
        exit();
    }

    void in(String name) throws IOException {
        if (name.equals("__std")) {
            in = new BufferedReader(new InputStreamReader(System.in));
        } else {
            in = new BufferedReader(new FileReader(name));
        }
    }

    void out(String name) throws IOException {
        if (name.equals("__std")) {
            out = new PrintWriter(System.out);
        } else {
            out = new PrintWriter(name);
        }
    }

    void exit() {
        out.close();
        System.exit(0);
    }

    int readInt() throws IOException {
        return Integer.parseInt(readToken());
    }

    long readLong() throws IOException {
        return Long.parseLong(readToken());
    }

    double readDouble() throws IOException {
        return Double.parseDouble(readToken());
    }

    String readLine() throws IOException {
        st = null;
        return in.readLine();
    }

    String readToken() throws IOException {
        while (st == null || !st.hasMoreTokens()) {
            st = new StringTokenizer(in.readLine());
        }
        return st.nextToken();
    }

    boolean eof() throws IOException {
        return !in.ready();
    }

    void print(String format, Object ... args) {
        out.println(new Formatter(Locale.US).format(format, args));
    }

    void println(String format, Object ... args) {
        out.println(new Formatter(Locale.US).format(format, args));
    }

    void print(Object value) {
        out.print(value);
    }

    void println(Object value) {
        out.println(value);
    }

    void println() {
        out.println();
    }

    StringTokenizer st;

    BufferedReader in;
    PrintWriter out;

    public static void main(String[] args) throws IOException {
        new C().solve();
    }
}

import java.io.IOException;
import java.util.ArrayList;
import java.util.BitSet;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;


public class Main
{

	/**
	 * @param args
	 */
//	public static void main(String[] args)
//	{
//		try
//		{
//			Map<Character, Character> m = new HashMap<Character, Character>();
//			start_googlerese("ejp mysljylc kd kxveddknmc re jsicpdrysi","our language is impossible to understand",m);
//			start_googlerese("rbcpc ypc rtcsra dkh wyfrepkym veddknkmkrkcd","there are twenty six factorial possibilities",m);
//			start_googlerese("de kr kd eoya kw aej tysr re ujdr lkgc jv","so it is okay if you want to just give up",m);
//			
//			m.put('z','q');
//			m.put('q','z');
//			
//			int a=0;
//			a= a+1;
//			
//			char letter;
//			for (letter='a'; letter <= 'z'; letter++)
//			{
//				if(m.containsKey(letter))
//					System.out.println(letter+" "+m.get(letter));
//				else
//					System.out.println(letter+" "+"!!!");
//			}
//			
//			googlerese(m);
//			
//		}
//		catch (IOException e)
//		{
//			// TODO Auto-generated catch block
//			e.printStackTrace();
//		}
//	}	
	
	
	public static void main(String[] args)
	{
		try
		{
			recycled();
			
		}
		catch (IOException e)
		{
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}	
	

	
	
	public static void recycled() throws IOException
	{
		ArrayList<String[]> input = Tools.getInput("C:\\Users\\Yannick\\Dropbox\\GCJ_JAVA\\Q_2012\\C-small.in");
		ArrayList<String> output = new ArrayList<String>();
		
		int num_cases = Integer.parseInt(input.get(0)[0]);
		
		Set<Integer> done = new HashSet<Integer>();
		
		
		
		//!!!!!!!!!!!!!!!!!!! num_cases
		for (int i=0;i<num_cases;i++)
		{
			int length = input.get(i+1)[0].length();
			int lower = Integer.parseInt(input.get(i+1)[0]);
			int upper = Integer.parseInt(input.get(i+1)[1]);
			
			int result=0;
			
			int mult = (int) Math.pow(10,length-1);
			
			Set<Integer> ms = new HashSet<Integer>(length-1);
			
			for (int n=lower;n<=upper;n++)
			{
				int m=n;				
				ms.clear();
				
				for(int j=0;j<length-1; j++)
				{
					
					int last = m - 10*(m/10);
					m = m-last;
					m = m/10;
					m = m + last * mult;
									
					
					if(m>n && m<=upper && !ms.contains(m))
					{
//						System.out.println(n+" "+m);
						result++;
						ms.add(m);
					}
					
				}
			}			
			
			
			StringBuilder sbO = new StringBuilder();
			sbO.append("Case #"+(i+1)+": ");
			sbO.append(result);
			output.add(sbO.toString());
		}
		
		Tools.saveOutputSingle("C:\\Users\\Yannick\\Dropbox\\GCJ_JAVA\\Q_2012\\C-small.out", output);
	}
	
	
	public static void start_googlerese(String input, String output, Map<Character, Character> m) throws IOException
	{		
		if(input.length()!=output.length())
			throw new IOException();
		
		for(int i=0;i<input.length();i++)
		{
			m.put(input.charAt(i),output.charAt(i));
		}
	}
	
	public static void googlerese(Map<Character, Character> m) throws IOException
	{
		ArrayList<String> input = Tools.getInputSingle("C:\\Users\\Yannick\\Dropbox\\GCJ_JAVA\\Q_2012\\A-small.in");
		ArrayList<String> output = new ArrayList<String>();
		
		int num_cases = Integer.parseInt(input.get(0));
		
		for (int i=0;i<num_cases;i++)
		{
			String strI = input.get(i+1);
			StringBuilder sbO = new StringBuilder();
			sbO.append("Case #"+(i+1)+": ");
			for(int j=0; j<strI.length();j++)
			{
				sbO.append(m.get(strI.charAt(j)));
			}
			output.add(sbO.toString());			
		}
			
				
		Tools.saveOutputSingle("C:\\Users\\Yannick\\Dropbox\\GCJ_JAVA\\Q_2012\\A-small.out", output);
	}
	

	public static void minimum_scalar_product() throws IOException
	{
		ArrayList<String[]> input = Tools.getInput("D:\\Documents\\Dropbox\\GCJ_JAVA\\1A_2008\\A-large-practice.in");
		ArrayList<String[]> output = new ArrayList<String[]>();
		
		
		int T = Integer.parseInt(input.get(0)[0]);
		
		for (int i=0;i<T;i++)
		{
			int pointer = i*3+1;
			int n = Integer.parseInt(input.get(pointer)[0]);
			
			ArrayList<Integer> vectorA = new ArrayList<Integer>();
			ArrayList<Integer> vectorB = new ArrayList<Integer>();

			for(int j=0;j<n;j++)
			{
				vectorA.add(Integer.parseInt(input.get(pointer+1)[j]));
				vectorB.add(Integer.parseInt(input.get(pointer+2)[j]));
			}
			
			Collections.sort(vectorA);
			Collections.sort(vectorB);
			
			long sum=0;
			
			for (int j=0;j<n;j++)
				sum += ((long) vectorA.get(j))*vectorB.get(n-j-1);
			
			String[] output_line = new String[1];
			output_line[0] = "Case #"+(i+1)+": "+sum;
			output.add(output_line);			
		}		
		
		Tools.saveOutput("D:\\Documents\\Dropbox\\GCJ_JAVA\\1A_2008\\A-large-practice.out", output);
	}
	
	public static void dancing() throws IOException
	{
		ArrayList<String[]> input = Tools.getInput("C:\\Users\\Yannick\\Dropbox\\GCJ_JAVA\\Q_2012\\B-small.in");
		ArrayList<String> output = new ArrayList<String>();
		
		int num_cases = Integer.parseInt(input.get(0)[0]);
		
		for (int i=1;i<=num_cases;i++)
		{
			int result=0;
			
			int N=Integer.parseInt(input.get(i)[0]);
			int S=Integer.parseInt(input.get(i)[1]);
			int p=Integer.parseInt(input.get(i)[2]);
			int a,b,c;
			for(int j=0;j<N;j++)
			{
				int goog = Integer.parseInt(input.get(i)[3+j]);
				a = goog/3;
				b = (goog-a)/2;
				c = goog-a-b;
				
				if( a>=p || b>=p || c>=p )
					result++;
				else
				{
					if(S>0 && ( (a==b && a==p-1 && a>0) || (a==c && a==p-1 && a>0) || (b==c && b==p-1 && b>0) ) )
					{
						S--;
						result++;
					}
				}
				
			}

			
			StringBuilder sbO = new StringBuilder();
			sbO.append("Case #"+(i)+": ");
			sbO.append(result);
			output.add(sbO.toString());
		}
		
		Tools.saveOutputSingle("C:\\Users\\Yannick\\Dropbox\\GCJ_JAVA\\Q_2012\\B-small.out", output);
	}

}
