import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.HashSet;

public class Recycled {
    public static void main(String[] args) {
        try {
            BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
            int t = Integer.parseInt(br.readLine());
            for (int i = 0; i < t; i++) {
                String[] str = br.readLine().split(" ");
                int a = Integer.parseInt(str[0]);
                int b = Integer.parseInt(str[1]);
                System.out.println("Case #" + (i + 1) + ": " + find(a, b));
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private static int find(int a, int b) {
        HashSet<Long> used = new HashSet<Long>();
        int digits = String.valueOf(a).length();
        if (digits == 1) return 0;
        for (int i = a; i <= b; i++) {
            int s = 10;
            int m = (int) Math.pow(10, digits-1);
            for (int j = 0; j < digits-1; j++) {
                int r = i % s;
                if (r < s/10) continue;
                int q = i / s;
                int rn = r * m + q;
                s *= 10; m /= 10;
                if (i != rn && rn >= a && rn <= b) {
                    long pp;
                    if (rn < i) pp = (long)rn << 30 | i;
                    else pp = (long)i << 30 | rn;
                    if (!used.contains(pp)) {
                        used.add(pp);
                    }
                }
            }
        }
        return used.size();
    }
}

package com.google.code.jam2012.problemC;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.HashSet;
import java.util.Scanner;

/**
 * Created with IntelliJ IDEA.
 * User: Vahid
 * Date: 4/14/12
 * Time: 6:54 PM
 * To change this template use File | Settings | File Templates.
 */
public class ProblemC1 {

    public static void main(String[] args) throws IOException {

        Scanner scanner = new Scanner(new FileInputStream("data.in"));

        FileOutputStream out = new FileOutputStream("C2.out");
        long a, b, m,n;
        int lines = scanner.nextInt();
        scanner.nextLine();
        for (int i = 1; i<=lines; i++){
            a = scanner.nextLong();
            b = scanner.nextLong();
            out.write(("Case #"+i+": "+ calculate(a, b)).getBytes());
            out.write('\r');
            out.write('\n');
            if (scanner.hasNextLine()) scanner.nextLine();
        }
        scanner.close();
        out.close();
    }

    private static long calculate(long a, long b) {
        long logarithm = 1;
        long counter = 0;
        int len = 1;
        while (logarithm * 10 <= b) {
            logarithm *= 10;
            len++;
        }
        HashSet<Long> list;
        for (long n = a; n<b; n++) {
            list = new HashSet<Long>(100);
            long m = n;
            for (int i=1; i<len; i++){
                m = (m %10) *logarithm + (m/10);
                if ((n<m) && (m<=b) && (!list.contains(new Long(m)))) {
                    counter++;
                    list.add(new Long(m));
                }
            }
        }
        return  counter;
    }

}
