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.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.HashMap;

/**
 * 
 */

/**
 * @author Pandapotan Christian
 *
 */
public class RecycledNumbers {
	/*
	 * Write string to a file with specified path
	 */
	public static void writeFile(String filePath, String content){
		try{
			PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(filePath)));
			out.write(content);
			out.close();
		}
		catch(IOException e){
			e.printStackTrace();
		}
	}
	
	/*
	 * Return array that contains each lines of the input file, null if the reading process failed
	 */
	public static ArrayList<String> getLines(String filePath){
		ArrayList<String> lines = null;
		
		try{
			lines = new ArrayList<String>();
			
			String s;	    	   
		    BufferedReader in = new BufferedReader( new FileReader(filePath));
		    while ((s = in.readLine()) != null) {
		    	lines.add(s);	      
		    }	    
		    in.close();
		}catch(IOException e){
			e.printStackTrace();
		}
		
		return lines;
	}
	
	/**
	 * Replace value with the real path
	 */
	public static final String fileIn = "D:\\CodeJam\\RecycledNumbers-large.in";	
	
	/**
	 * @param args
	 */
	public static void main(String[] args) {

		//get input from file						
		ArrayList<String> lines = getLines(fileIn);
		
		//process data
		if(lines!=null){			
			System.out.println("System Start");
			long systemStart = System.currentTimeMillis();
			
			String firstLine = lines.get(0);
			int T = Integer.parseInt(firstLine);				
					
			//Main Algorithm			
			StringBuffer result = new StringBuffer();
			for(int testIdx = 1; testIdx<=T; testIdx++){	
				System.out.println("Test Case Number: "+testIdx);
				long start = System.currentTimeMillis();    										
				
				String param[] = lines.get(testIdx).split(" ");
				int A = Integer.parseInt(param[0]);
				int B = Integer.parseInt(param[1]);							

				int total = countRecycle(A, B);
							
				long elapsedTime = System.currentTimeMillis() - start;
				System.out.println("Case #"+testIdx+" takes "+elapsedTime+"ms.");
				
				//Append the result with the previous testcase
				result.append("Case #"+testIdx+": "+ total+"\n");
			}
			
			//write the result to a file
			String fileOut = fileIn.replace(".in", ".out");
			writeFile(fileOut, result.toString());
			
			System.out.println("SUCCESS");
			long elapsedTimeSyetem = System.currentTimeMillis() - systemStart;
			System.out.println("Time Elapsed to run whole test case: "+elapsedTimeSyetem+"ms");
				
		}			
	}
	
	public static int countRecycle(int A, int B){
		int count = 0;
		for(int i = A; i<=B; i++){
			String number = i+"";
			HashMap<Integer, Boolean> checker = new HashMap<Integer, Boolean>();
			for(int charIdx = 1; charIdx<number.length(); charIdx++){
				String newNumberString = number.substring(charIdx) + number.substring(0, charIdx);
				int newNumber = Integer.parseInt(newNumberString);
				if(newNumber>i && newNumber<=B)
					checker.put(newNumber, true);			 			
			}				
			count += checker.size();
		}
		return count;
	}
}
