import java.io.FileInputStream;
import java.util.HashMap;
import java.util.Scanner;
import java.util.TreeSet;

// Recycled Numbers
// https://code.google.com/codejam/contest/1460488/dashboard#s=p2

public class C {

	private static String process(Scanner in) {
		int A = in.nextInt();
		int B = in.nextInt();
		int res = 0;
		int len = Integer.toString(A).length();
		for(int n = A; n < B; n++) {
			String str = Integer.toString(n);
			TreeSet<Integer> set = new TreeSet<Integer>();
			for(int i = 1; i < len; i++) {
				int m = Integer.parseInt(str.substring(i, len) + str.substring(0, i));
				if ( m > n && m <= B && ! set.contains(m) ) {
					set.add(m);
					res++;
				}
			}
		}
		return Integer.toString(res);
	}

	public static void main(String[] args) throws Exception {
		Scanner in = new Scanner(System.in.available() > 0 ? System.in : 
			new FileInputStream(Thread.currentThread().getStackTrace()[1].getClassName() + ".practice.in"));
		int T = in.nextInt();
		for(int i = 1; i <= T; i++) 
			System.out.format("Case #%d: %s\n", i, process(in));
	}
}

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.Arrays;

/**
 * Created by IntelliJ IDEA.
 * User: Abhishek
 * Date: 4/14/12
 * Time: 1:09 PM
 * To change this template use File | Settings | File Templates.
 */
public class RecNum {
    public int recycled(String a, String b){
        int a1 = Integer.parseInt(a);
        int b1 = Integer.parseInt(b);
        int num = a1;
        int count=0;
        while(num<=b1){
            String x = String.valueOf(num);
            ArrayList<String> store = new ArrayList<String>(10);
            for(int i=1; i<x.length(); i++){
                String y = x.substring(x.length()-i, x.length())+x.substring(0, x.length()-i);

                int k = Integer.parseInt(y);
                if(k<=b1 && k>num && !store.contains(y)){
                    count++;
                    store.add(y);
                }
            }
            num++;

        }
        return count;
    }
    public static void main(String[] args) {
        RecNum spk = new RecNum();
        try {
            BufferedReader buff = new BufferedReader(new FileReader("C-small-attempt0.in"));
            FileWriter fstream = new FileWriter("out1.txt");
            BufferedWriter out = new BufferedWriter(fstream);
            int numTest = Integer.parseInt(buff.readLine());
            if (numTest < 1 || numTest > 50)
                System.exit(0);

            for (int k = 0; k < numTest; k++) {
                String[] inp = buff.readLine().split(" ");

                out.write("Case #" + (k + 1) + ": " + spk.recycled(inp[0],inp[1]));
                out.write("\n");
//                System.out.println("Case #" + (k + 1) + ": " + spk.recycled(inp[0],inp[1])+"\n");


            }
            out.close();

        } catch (Exception e) {
            System.out.println("Exception" + e);
        }
    }
}
