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 Recycle;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.StringTokenizer;

/**
 *
 * @author hemal
 */
public class Main {

    public static void main(String[] args) {
        try {
            BufferedReader bf = new BufferedReader(new FileReader(System.getProperty("user.dir") + "/src/Recycle/" + "input.in"));
            String s = bf.readLine();
            int t = Integer.parseInt(s);
//            for (int i = 1; i <= t; i++) {
//                int count = 0;
//                String s1 = bf.readLine();
//                String s2[] = s1.split(" ");
//                int a = Integer.parseInt(s2[0]);
//                int b = Integer.parseInt(s2[1]);
//                int size = s2[0].length();
//                System.out.println("size " + size);
//                for (int j = a; i <= b; j++) {
////                    for(int k=0;k<size;k++){
////                        String m=String.valueOf(j).charAt(k)
////                    }
////                    System.out.println(a + "  " + b);
////                    for (int k = 1; k <= size; k++) {
//                        int m = (int) (((j % (Math.pow(10, 1))) * Math.pow(10, size - 1)) + j / Math.pow(10, 1));
//                        System.out.println(m);
//                        m = (int) (((j % (Math.pow(10, 2))) * Math.pow(10, size - 2)) + j / Math.pow(10, 2));
//                        System.out.println(m);
////                        m = (int) (((j % (Math.pow(10, 3))) * Math.pow(10, size - 3)) + j / Math.pow(10, 3));
////                        System.out.println(m);
////                        m = (int) (((j % (Math.pow(10, 4))) * Math.pow(10, size - 4)) + j / Math.pow(10, 4));
////                        System.out.println(m);
////                        if (m > b) {
////                            break;
////                        }
////                    }
//                }
//                System.out.println("Case #" + i + ": " + count);
//            }
            PrintWriter pw = new PrintWriter("output.out");
            pw.println("Omg! It works!");
            ArrayList ar=new ArrayList();
            ar.add("1");
            ar.add("1");
            HashMap hm=new HashMap();
            hm.put("1", 12);
            hm.put("1", 32);
            System.out.println(hm);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}
