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.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Writer;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;

public class crazysolution {

	/**
	 * @param args
	 * @throws IOException
	 * @throws FileNotFoundException
	 */
	public static void main(String[] args) throws FileNotFoundException,
			IOException {
		// TODO Auto-generated method stub
		// Scanner sc = new Scanner(System.in);
		// int N = Integer.parseInt(sc.nextLine());

		//System.out.println(getContents(new File("B-small-attempt1.in")));
		setContents(new File("C-large-attempt.out"),getContents(new File("C-large.in")));
		
		/*System.out.println(getContents(new File("in")));
		setContents(new File("out"),getContents(new File("in")));*/
		// File("A-small-attempt2.in"));
		// System.out.println(isSurprising(8,10,8));
		//digitsReplacement("1114");
	}

	public static int recycledNumber(String str) {
		int counter=0;
		String[] input = str.split(" ");
		int A = Integer.parseInt(input[0]); // lower bound
		int B = Integer.parseInt(input[1]); // upper bound
		HashMap<String,Integer> tHashMap = new HashMap<String,Integer>();
		HashSet<String> tHashSet = new HashSet<String>();
		for (int i=A; i<=B;i++){
			//tHashSet.add(i);
			tHashMap.put(Integer.toString(i),0);
		}
		for (int i=A; i<=B;i++){
			String numberStr = Integer.toString(i);
			String newNumberStr = null;
			int sizeNumberStr = numberStr.length();
			for (int j=1; j<sizeNumberStr;j++){
				newNumberStr = numberStr.substring(j) + numberStr.substring(0,j);
				if (newNumberStr.compareTo(numberStr)!=0) {
					if (tHashMap.containsKey(newNumberStr)){// && !tHashSet.contains(newNumberStr)){
							tHashSet.add(numberStr+newNumberStr);
							//System.out.println(numberStr + " "+newNumberStr);
							//counter++;
							//tHashSet.add(newNumberStr);
							//tHashSet.add(newNumberStr);
							//tHashSet.add(numberStr);
					}
				}
			}
			tHashMap.remove(numberStr);
		}
		return tHashSet.size();
	}
	public static String digitsReplacement(String str){
		String newStr = null;
		int size = str.length();
		for (int i= 1; i<size;i++){
			newStr = str.substring(i) + str.substring(0,i);
			if (newStr.compareTo(str)!=0)
				System.out.println(newStr);
		}
		return "";
	}

	static public String getContents(File aFile) {
		// ...checks on aFile are elided
		StringBuilder contents = new StringBuilder();

		try {
			// use buffering, reading one line at a time
			// FileReader always assumes default encoding is OK!
			BufferedReader input = new BufferedReader(new FileReader(aFile));
			try {
				String line = null; // not declared within while loop
				/*
				 * readLine is a bit quirky : it returns the content of a line
				 * MINUS the newline. it returns null only for the END of the
				 * stream. it returns an empty String if two newlines appear in
				 * a row.
				 */
				line = input.readLine();
				int T = Integer.parseInt(line);
				int i = 1;
				while ((line = input.readLine()) != null) {
					// contents.append(line);
					contents.append("Case #" + i + ": " + recycledNumber(line));
					if (i < T)
						contents.append(System.getProperty("line.separator"));
					i++;

				}
			} finally {
				input.close();
			}
		} catch (IOException ex) {
			ex.printStackTrace();
		}

		return contents.toString();
	}

	static public void setContents(File aFile, String aContents)
			throws FileNotFoundException, IOException {
		if (aFile == null) {
			throw new IllegalArgumentException("File should not be null.");
		}
		if (!aFile.exists()) {
			throw new FileNotFoundException("File does not exist: " + aFile);
		}
		if (!aFile.isFile()) {
			throw new IllegalArgumentException("Should not be a directory: "
					+ aFile);
		}
		if (!aFile.canWrite()) {
			throw new IllegalArgumentException("File cannot be written: "
					+ aFile);
		}

		// use buffering
		Writer output = new BufferedWriter(new FileWriter(aFile));
		try {
			// FileWriter always assumes default encoding is OK!
			output.write(aContents);
		} finally {
			output.close();
		}
	}

}
