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.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Writer;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;


public class Main {
	public static void main(String arg[])
	{
		try {
		
			FileInputStream fIn = new FileInputStream("input.txt");
			
			Charset cs = Charset.forName("UTF-8");
			InputStreamReader iRd = new InputStreamReader(fIn,cs);
			BufferedReader bRd = new BufferedReader(iRd);
			
			
			String str = bRd.readLine();
			
			Integer line = Integer.parseInt(str);
						
			Writer output = null;
			File file = new File("output.txt");
			output = new BufferedWriter(new FileWriter(file));
			
			
			for(int i = 0 ; i < line; ++i)
			{
				String inLine = bRd.readLine();
				String[] nums = inLine.split(" ");
				
				String start = nums[0];
				String stop = nums[1];
				
				int result = calculate(Integer.parseInt(start),Integer.parseInt(stop));
//				System.out.println("Case #" + (i+1) + ": " + result);
				output.write("Case #" + (i+1) + ": " + result + "\n");
			}
			
			output.close();
			
			} catch (FileNotFoundException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
	
	}
	public static int calculate(Integer start, Integer stop)
	{		
		int sum = 0;
		
		List<Integer> ranges = separate(start,stop);
		
		for(int i = 0 ; i < ranges.size() ;)
		{
			
			Integer lowBound = ranges.get(i);
			Integer upBound = ranges.get(i+1);
			
//			System.out.println(ranges.get(i) + " : " + ranges.get(i+1));
			
			sum += countCyclic(lowBound , upBound);
			
			i+=2;
		}
		
		return sum;
		
	}
	
	public static int countCyclic(Integer start,Integer stop)
	{
		int count = 0;
		int dec = start;
		boolean mark[] = new boolean[stop-start+1];
		
		for(int i = start ; i < stop ; ++i)
		{
			if(!mark[i-dec])
			{
				List<Integer> shiftRes = shifting(i,start,stop);
				
				switch(shiftRes.size())
				{
				case 2 : ++count;break;
				case 3 : count+=3;break;
				case 4 : count+=6;break;
				case 5 : count+=10;break;
				case 6 : count+=15;break;
				case 7 : count+=21;break;
				case 8 : count+=28;break;				
				}
				
				
				
				for(int j = 0 ; j < shiftRes.size() ; ++j)
				{
					
					Integer num = shiftRes.get(j);
					mark[num-dec] = true;
				}
			}
		}
		
		return count;
		
	}
	
	public static List<Integer> shifting(Integer seed ,Integer lowerBound, Integer upperBound)
	{
		List<Integer> result = new ArrayList<Integer>();
		
		result.add(seed);
				
		String num = seed.toString();
		
		int n = num.length()-1;		
		
		for(int i = 0 ; i < n ; ++i)
		{
			num = num.substring(1) + num.charAt(0);
			Integer intNum = Integer.parseInt(num); 
			if(num.charAt(0)!='0' && !result.contains(intNum) && intNum <= upperBound && intNum >= lowerBound)
			{								
				result.add(intNum);				
			}
		}
		
		
		return result;
	}
	
	public static List<Integer> separate(Integer start, Integer stop)
	{
		List<Integer> shift = null;  
		
		if(stop.toString().length() > start.toString().length())
		{
			int n = start.toString().length();
			
			String wall = "";
			
			while(wall.length() < n)
			{
				wall += 9;
			}
			
			Integer upBound = Integer.parseInt(wall);
			
			shift = separate(upBound+1,stop);
			shift.add(start);
			shift.add(upBound);
		}
		else
		{
			shift = new ArrayList<Integer>();
			shift.add(start);
			shift.add(stop);
		}
		
		return shift;
	}
	
}
