import java.io.*;

class code1
{
	public static void main(String args[]) throws Exception 
	{
		File ii = new File ("C-small-attempt1.in");
		FileInputStream fis = new FileInputStream(ii);
		BufferedReader  br = new BufferedReader(new InputStreamReader (fis));
		int cases = Integer.parseInt(br.readLine());
		FileOutputStream fout = new FileOutputStream ("output.txt");
		DataOutputStream dout = new DataOutputStream (fout);
		int total=0;
		for(int i=0;i<cases;i++){
		String temp = br.readLine();
		String parts [] = temp.split(" ");
		int lower = Integer.parseInt(parts[0]);
		int upper = Integer.parseInt(parts[1]);
		System.out.println(lower+" "+upper);
		
		for(int j=lower;j<=upper;j++)
		{
			int abc = j;int length=0;
			if(j<10)continue;
			while (abc!=0){abc/=10;length++;}
			abc=j;
			for(int m=0;m<length-1;m++){
				int shift = abc%10;
				abc=abc/10;
				System.out.println("hi "+j);
				abc=abc+shift*power(10,length-1);
				if(abc<=upper&&shift!=0&&abc>j)total++;
				System.out.println(total);
			}
		}
 		dout.writeBytes("Case #"+(i+1)+ ": "+total+"\n");
 		total=0;
		}//for close
		
	}

	private static int power(int i, int j) {
		int no=1;
		for(int a=0;a<j;a++){no=10*no;}
		return no;
	}
}
/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package gcj2012.qualification_round;

import java.io.FileReader;
import java.io.FileWriter;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Scanner;

/**
 *
 * @author langlv
 */
public class Dancing {

    private static int countDigit(int num) {
        Integer t = new Integer(num);
        int count = 0;
        while (t != 0) {
            t = t / 10;
            count++;
        }
        return count;
    }

    private static int recycledNumber(int num, int pos) {
        if (num < 10) {
            return 0;
        }
        if (pos > countDigit(num)) {
            return 0;
        }
        String n = String.valueOf(num);
        int res = Integer.parseInt(n.substring(pos) + n.substring(0, pos));

        return res;
    }

    public static void main(String[] args) throws Exception {
//        Scanner sc = new Scanner(System.in);
//        PrintWriter pw = new PrintWriter(System.out);
        Scanner sc = new Scanner(new FileReader("C:\\C-small-attempt0.in"));
        PrintWriter pw = new PrintWriter(new FileWriter("C:\\C-small-attempt0.out"));
        try {
            int ntest = Integer.parseInt(sc.nextLine());

            for (int test = 1; test <= ntest; ++test) {
                int A = sc.nextInt();
                int B = sc.nextInt();

                System.out.println("--------------------------");
                int res = 0;
                List<Integer> num = new ArrayList<Integer>();
                for (int i = A; i <= B; i++) {
                    for (int j = 1; j < countDigit(i); j++) {
                        int rec = recycledNumber(i, j);
                        if (A <= rec && rec <= B && i < rec) {
                            num.add(rec);
                            res++;
                            System.out.println(res + ": " + i + "," + rec);
                        }
                    }
                }

                pw.print("Case #" + test + ": ");
                pw.print(res);
                pw.println();
            }
        } catch (Exception e) {
            System.err.println(e.getMessage());
            e.printStackTrace();
        } finally {
            pw.close();
            sc.close();
        }
    }
}
