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.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.util.HashSet;
import java.util.Set;
import java.util.StringTokenizer;

public class C {
	private static String FILENAME = "stdin";
	static {
		//FILENAME = "C-sample";
		//FILENAME = "C-small";
		FILENAME = "C-large";
	}

	public static void main(String[] args) {
		new C().run();
	}

	private PrintStream out;
	private final BufferedReader reader;
	private StringTokenizer tokenizer = new StringTokenizer("");

	public C() {
		try {
			out = System.out;
			if (FILENAME == "stdin") {
				reader = new BufferedReader(new InputStreamReader(System.in));
			} else {
				out = new PrintStream(new FileOutputStream("source/" + FILENAME + ".out"));
				reader = new BufferedReader(new FileReader("source/" + FILENAME + ".in"));
			}
		} catch (FileNotFoundException e) {
			throw new RuntimeException(e);
		}
	}

	public void run() {
		try {
			runCases();
		} finally {
			closeAll();
		}
	}

	private void runCode() {
		int a = getInt();
		int b = getInt();
        Set<String> visited = new HashSet<String>();
        int count = 0;
        for (int n = a; n <= b; n++) {
            String s = Integer.toString(n);
            int length = s.length();
            for (int j = 0; j < length; j++) {
                String s2 = s.substring(j) + s.substring(0, j);
                int m = Integer.parseInt(s2);
                if (m > n && m <= b) {
                    String key = s + "," + s2;
                    if (visited.add(key)) {
                        count++;
                    }
                }
            }
        }
		out.println(count);
	}

	private void runCases() {
		int cases = getInt();
		for (int c = 1; c <= cases; c++) {
			out.print("Case #" + c + ": ");
			runCode();
		}
	}

	private void closeAll() {
		out.close();
	}

	private String getToken() {
		try {
			while (true) {
				if (tokenizer.hasMoreTokens()) {
					return tokenizer.nextToken();
				}
				String s = reader.readLine();
				if (s == null) {
					return null;
				}
				tokenizer = new StringTokenizer(s, " \t\n\r");
			}
		} catch (IOException e) {
			throw new RuntimeException(e);
		}
	}
	public double getDouble() {
		return Double.parseDouble(getToken());
	}

	public int getInt() {
		return Integer.parseInt(getToken());
	}

	public long getLong() {
		return Long.parseLong(getToken());
	}

	public BigInteger getBigInt() {
		return new BigInteger(getToken());
	}

	public BigDecimal getBigDec() {
		return new BigDecimal(getToken());
	}

}
