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.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;


public class RecycledNumbersSolver {
	public static void main(String[] args) {
		try {
			FileInputStream fIS = new FileInputStream(args[0]);
			BufferedReader r = new BufferedReader(new InputStreamReader(fIS));
			
			int t = Integer.parseInt(r.readLine());
			for (int i=0;i<t;++i) {
				System.out.print("Case #" + (i+1) + ": ");
				if (i < t-1)
					System.out.println(solveTest(r.readLine()));
				else
					System.out.print(solveTest(r.readLine()));
			}
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (NumberFormatException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}			
	}

	private static int solveTest(String line) {
		Map<Integer, List<Integer>> matches = new HashMap<Integer, List<Integer>>();
		
		String[] nums = line.split(" ");
		int a = Integer.parseInt(nums[0]);
		int b = Integer.parseInt(nums[1]);
		Integer bInt = b;
		
		int result = 0;
		
		for (int i=a;i<b;++i) {
			result += solveTest(i, bInt, matches);
		}
		
		return result;
	}

	private static int solveTest(Integer n, Integer max, Map<Integer, List<Integer>> matches) {
		String txt = n.toString();
		int digits = txt.length();
		
		int counter = 0;
		
		for (int i=1;i<digits;++i) {
			Integer nNum = getRecycled(txt, i);
			if (nNum.compareTo(n) > 0 && nNum.compareTo(max) <= 0) {
				if (matches.get(n) == null)
					matches.put(n, new LinkedList<Integer>());
				
				List<Integer> list = matches.get(n);
				if (!list.contains(nNum)) {
					list.add(nNum);
					++counter;
				}
			}
		}
		
		return counter;
	}

	private static Integer getRecycled(String txt, int shift) {
		StringBuilder bld = new StringBuilder();
		
		for (int i=txt.length()-shift;i<txt.length();++i)
			bld.append(txt.substring(i, i+1));
		
		for (int i=0;i<txt.length()-shift;++i)
			bld.append(txt.substring(i, i+1));
		
		return Integer.parseInt(bld.toString());
	}
}
