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();
    }
}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package cj2012;

import java.io.BufferedReader;
import java.io.FileReader;
import java.util.*;

/**
 *
 * @author agraa1
 */
public class Recycle {
    public static void main(String[] args) throws Exception {
        Recycle puzzle = new Recycle();
        puzzle.solve();
    }
    
    private void solve() throws Exception {
        BufferedReader br = new BufferedReader(new FileReader("E:\\C-large.in"));
        String line = br.readLine();
        for (int count=0; count<Integer.valueOf(line); count++) {
            showResult(count+1, br.readLine());
        }
        br.close();
    }
    
    private void showResult(int caseNum, String input) {
        List<Integer> recNumbers = new ArrayList<Integer>();
        StringTokenizer tokenizer = new StringTokenizer(input, " ");
        String A = tokenizer.nextToken();
        String B = tokenizer.nextToken();
        if (Integer.valueOf(B) > 10) {
            findSolution(A, B, recNumbers);
        }
        StringBuilder builder = new StringBuilder("Case #");
        builder.append(caseNum);
        builder.append(": ");
        builder.append(recNumbers.size());
        System.out.println(builder.toString());
    }
    
    private void findSolution(String A, String B, List recNumbers) {
        int numA = Integer.valueOf(A);
        int numB = Integer.valueOf(B);
        for (int num = numA; num < numB; num++) {
            getRecycles(num, numA, numB, recNumbers);
        }
    }
    
    private void getRecycles(int num, int numA, int numB, List recNumbers) {
        String toBeRec = ""+num;
        //System.out.println("Recycles for " + num);
        Set<Integer> recyclesForNum = new HashSet<Integer>();
        for (int count=1; count<toBeRec.length(); count++) {
            int recycledNum = Integer.valueOf(toBeRec.substring(toBeRec.length() - count, toBeRec.length()) + toBeRec.substring(0, toBeRec.length() - count));
            //System.out.println("" + count + ":" + recycledNum);
            if ( recycledNum <= numB && recycledNum >= numA && recycledNum > num) {
                //System.out.println("#" + (recNumbers.size()+1) + " ----------------" + num + "--" + recycledNum);
                recyclesForNum.add(recycledNum);
            }
        }
        recNumbers.addAll(recyclesForNum);
    }
}