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.DataInputStream;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.InputStreamReader;
import java.util.HashSet;

public class ProblemB {
	static HashSet<String> pairs = new HashSet<String>();

	public static void main(String args[]) {
		ReadInFile();
	}

	private static void ReadInFile() {
		try {

			FileWriter ofstream = new FileWriter("c:/cygwin/out.txt");
			BufferedWriter out = new BufferedWriter(ofstream);

			// Open the file that is the first
			// command line parameter
			FileInputStream fstream = new FileInputStream(
					"c:/cygwin/C-large.in");
			// Get the object of DataInputStream
			DataInputStream in = new DataInputStream(fstream);
			BufferedReader br = new BufferedReader(new InputStreamReader(in));
			String strLine;
			// Read File Line By Line
			int i = 0;
			strLine = br.readLine();
			while ((strLine = br.readLine()) != null) {
				pairs.clear();
				// Print the content on the console
				System.out.println(strLine);

				String[] tokens = strLine.split("\\s+");

				System.out.println("Case #"
						+ (++i)
						+ ": "
						+ ReturnCount(Integer.parseInt(tokens[0]),
								Integer.parseInt(tokens[1])));

				out.write("Case #"
						+ (i)
						+ ": "
						+ ReturnCount(Integer.parseInt(tokens[0]),
								Integer.parseInt(tokens[1])) + "\n");

			}
			// Close the input stream
			in.close();
			out.close();

		} catch (Exception e) {// Catch exception if any
			System.err.println("Error: " + e.getMessage());
		}
	}

	static int ReturnCount(int n, int m) {
		HashSet<Integer> cycles = new HashSet();
		for (int i = n; i <= m; i++) {
			// if (!cycles.contains(i))
			cycles.addAll(GetCycles(i, n, m));
		}

		return pairs.size();
	}

	static private HashSet<Integer> GetCycles(int in, int n, int m) {
		String s = String.valueOf(in);
		HashSet<Integer> out = new HashSet<Integer>();
		for (int i = 0; i < s.length(); i++) {
			String sub1 = s.subSequence(0, i + 1).toString();
			String sub2 = s.subSequence(i + 1, s.length()).toString();

			int permutation = Integer.parseInt(sub2 + sub1);
			out.add(permutation);
		}

		for (int i : out)
			if (i >= n && i <= m && i > in) {
				pairs.add(in + "," + i); // return out;
			}

		return out;
	}
}
