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();
    }
}

package problemc;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;

public class RecycledNumbers {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		int T = 1;
		String G = "";
		String[] inputs;
		BufferedReader reader;

		reader = new BufferedReader(new InputStreamReader(System.in));

		try {
			T = Integer.parseInt(reader.readLine());
		} catch (Exception e1) {
			// TODO Auto-generated catch block
			e1.printStackTrace();
		}
		StringBuffer buffer = new StringBuffer();
		for (int X = 1; X <= T; X++) {
			try {
				G = reader.readLine();
				inputs = G.split(" ");
				int A = Integer.parseInt(inputs[0]);
				int B = Integer.parseInt(inputs[1]);
				int result = 0;
				int n;
				int m;
				Map<Integer, Integer> pairs = new HashMap<Integer, Integer>();
				for (int i = A; i <= B; i++) {
					int x = 10;
					int shift = Integer.toString(i).length();
					while (i % x < i) {
						shift--;
						if (i % x >= x / 10) {
							n = i;
							m = i % x;
							for (int j = 0; j < shift; j++) {
								m = m * 10;
							}
							m += (i / x);
							if (n >= m) {
								x = x * 10;
								continue;
							}
							if (m <= B) {
								if (pairs.get(n) == null
										|| !pairs.get(n).equals(m)) {
									result++;
									pairs.put(n, m);
//									System.out.println(n+", "+m);
								}
							}
						}
						x = x * 10;
					}
				}
				buffer.append("Case #").append(X).append(": ").append(result)
						.append("\r\n");
			} catch (Exception e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
		System.out.println(buffer.toString());

	}

}
