import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;


public class GoogleC {
	public String szamol(String input){
		String result="";
		String a=input;
		Integer min=Integer.parseInt(a.substring(0,a.indexOf(' ')));
		a=a.substring(a.indexOf(' ')+1);
		Integer max=Integer.parseInt(a);
		Long count=0l;
		for(Integer i=min; i<=max; i++){
			String e1=i.toString();
			Set<Integer> db=new HashSet<Integer>(); 
			for (int j=1; j<e1.length();j++){
				
				String e2=e1.substring(j)+e1.substring(0,j);
				Integer k=Integer.parseInt(e2);
				if (k>i && k<=max){
					db.add(k);
					//System.out.println(e1+"\t"+e2);
				}
				
			}
			count+=db.size();
		}
		
		return count.toString();
	}
	public static void main(String[] args) {
		GoogleC a=new GoogleC();
		//String filename="input.txt";
		//String filename="C-small-attempt0.in";
		String filename="C-large.in";
		String thisLine;
		try {
			BufferedReader br = new BufferedReader(new FileReader(filename));
			BufferedWriter bw= new BufferedWriter(new FileWriter(filename+".out"));
			thisLine=br.readLine();
			Integer tnum=Integer.parseInt(thisLine);
		     for(int i=0;i<tnum;i++) { // while loop begins here
		    	 	thisLine=br.readLine();
		           System.out.println(thisLine);
		           System.out.println("Case #"+(i+1)+": "+a.szamol(thisLine)+"\n");
		           bw.write("Case #"+(i+1)+": "+a.szamol(thisLine)+"\n");
		         } // end while 
		        // end try
		     br.close();
		     bw.close();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}


	}

}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package javaapplication3;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.io.Writer;
import java.util.Scanner;

/**
 *
 * @author yondaime
 */
public class JavaApplication3 {

    static int A = 1111;
    static int B = 2222;

    public static int[] permute(int n) {

        String chaine = n + "";
        int tailleChaine = chaine.length();
        int nombre;
        String g = "";
        for (int i = 0; i < tailleChaine; i++) {
            g += "1";
        }
        nombre = Integer.parseInt(g);
        if (chaine.length() < 1 || n % nombre == 0) {
            int[] t = new int[1];
            t[0] = n;
            return t;
        }
        int table[] = new int[10];

        for (int i = 0; i < tailleChaine - 1; i++) {
            String t = "";
            t = chaine.substring(i + 1);
            t += chaine.substring(0, i + 1);
            int m = Integer.parseInt(t);
            if (m > n && n >= A && m <= B) {
                table[i] = m;
//                System.out.println(table[i]);
            }
        }

//        System.out.println("end");
//
        int m = Integer.parseInt(chaine);

        return table;
    }
    static int count;

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

        Scanner sc = new Scanner(new File("C-large.in"));
        PrintWriter out = new PrintWriter(new File("C-large.out"));
        sc.next();
        int kl=0;
        while (sc.hasNext()) {
            
            A = sc.nextInt();
            B = sc.nextInt();
            out.print("Case #"+(++kl)+":");
//            out.print(" "+B);
            for (int n = A; n < B; n++) {
                int mm[] = permute(n);
                for (int k = 0; k < mm.length; k++) {
                    int m = mm[k];
                    // n doit etre < Ã  m
                    //n doit etre > Ã  A et m doit etre inferieur Ã  B
                    // A <= n < m <= B
                    if (n >= m || A > n || m > B) {
                        continue;
                    }
                    count++;
//                    out.print("n = " + n + " m = " + m);
                }


            }
            out.println(" " + count);
            count=0;

        }
        out.close();
        sc.close();
    }
}
