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.File;
import java.io.FileReader;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.StringTokenizer;

public class RecycledNumbersLarge {
	
	public static File inputFile, outputFile;
	public static List<String> inputLines = new ArrayList<String>();
	public static List<String> outputLines = new ArrayList<String>();
	
	public static Map<Character,Character> mapGtE = new HashMap<Character,Character>(); 
	
	private static void initFiles() {
		inputFile = new File("C:\\Users\\Enrique\\Desktop\\codejam\\RecycledNumbers\\C-small-attempt0.in");
		outputFile = new File("C:\\Users\\Enrique\\Desktop\\codejam\\RecycledNumbers\\RecycledNumbers.out");
	}
	
	
	private static void readInput() {
		BufferedReader reader;
		try {
			reader = new BufferedReader(new FileReader(inputFile));		
			String line = ""; 
			int numberOfCases = Integer.parseInt(reader.readLine()); 
			for(int i=0; i<numberOfCases; i++) {		
				line=reader.readLine();
				inputLines.add(line);
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	
	private static void writeOutput() {
		PrintWriter writer;
		try {
			writer = new PrintWriter(outputFile);
			int numberOfCase = 1;
			int numberOfLines = outputLines.size();
			for(String outputLine : outputLines) {
				writer.print("Case #"+numberOfCase+": "+outputLine);
				if(numberOfCase!=numberOfLines) {
					writer.println("");					
				}			
				numberOfCase++;
			}
			writer.close();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	
	private static void doAlgorithm() {		

		for(String inputLine : inputLines) {			
			StringTokenizer st = new StringTokenizer(inputLine," ");
			
			int downBounds = Integer.parseInt(st.nextToken());
			int upBounds = Integer.parseInt(st.nextToken());
			
			int outputLine = getResult(downBounds, upBounds);
			
			outputLines.add(String.valueOf(outputLine));
		}
		
		
	}
	
	private static int getResult(int downBounds, int upBounds) {
		
		Set<String> recycledPairs = new HashSet<String>();
		
		int result=0;	
		
		for(int i=downBounds; i<=upBounds; i++) {
				String numstr_rotate = String.valueOf(i);
				String numstr_original = String.valueOf(i);
				for(int j=1; j<=numstr_rotate.length()-1; j++) {
					numstr_rotate = numstr_rotate.charAt(numstr_rotate.length()-1)+numstr_rotate.substring(0,numstr_rotate.length()-1);				
					if(!numstr_rotate.equals(numstr_original)) {								
						if(Integer.parseInt(numstr_rotate) <= upBounds && Integer.parseInt(numstr_rotate) >= downBounds) {
							if(!recycledPairs.contains(numstr_original+":"+numstr_rotate) && !recycledPairs.contains(numstr_rotate+":"+numstr_original)) {						
								recycledPairs.add(numstr_original+":"+numstr_rotate);
								result++;
							}
						}
					}
				}
		}		
		
		return result;
	}
	

	
	/**
	 * @param args
	 */
	public static void main(String[] args) {

		initFiles();
		
		readInput();	
		
		doAlgorithm();
		
		writeOutput();
	}
	
}
