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 googlecodejamproblemc;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;

/**
 *
 * @author Fluffy Dragon
 */
public class Main {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        File inputFile = new File("C-small-attempt0.in");
        File outputFile = new File("output.txt");
        FileReader fr = null;
        try {
            fr = new FileReader(inputFile);
            BufferedReader br = new BufferedReader(fr);
            FileWriter fw = new FileWriter(outputFile, false);
            BufferedWriter bw = new BufferedWriter(fw);
            int count = Integer.parseInt(br.readLine());
            for (int i = 0; i < count; i++) {
                String readLine = br.readLine();
                String[] split = readLine.split("\\s");
                int[] input = new int[split.length];
                for (int i2 = 0; i2 < split.length; i2++) {
                    input[i2] = Integer.parseInt(split[i2]);
                }
                String output = calculate(i + 1, input);
                bw.write(output);
                if (i + 1 < count) {
                    bw.newLine();
                }
            }
            br.close();
            fr.close();
            bw.close();
            fw.close();
        } catch (FileNotFoundException e) {
        } catch (IOException e) {
        }
    }

    private static String calculate(int count, int[] input) {
        String output = "Case #" + count + ": ";
        int a = input[0];
        int b = input[1];
        int[] availableNumbers = new int[b - a + 1];
        for (int i = 0; i <= (b - a); i++) {
            availableNumbers[i] = i + a;
        }
        ArrayList<String> passed = new ArrayList(0);
        for (int n : availableNumbers) {
            ArrayList<String> used = new ArrayList(0);
            String intAsString = String.valueOf(n);
            for (int i = intAsString.length() - 1; i > 0; i--) {
                String endSubString = intAsString.substring(i, intAsString.length());
                String startSubString = intAsString.substring(0, i);
                String mixString = endSubString.concat(startSubString);
                int m = Integer.parseInt(mixString);
                if (a <= n && n < m && m <= b && a < b) {
                    //System.out.println(mix);
                    if (String.valueOf(m).length() == intAsString.length()) {
                        for (int check : availableNumbers) {
                            if (check == m) {
                                if (!used.contains(mixString)) {
                                    used.add(mixString);
                                    passed.add(mixString);
                                    break;
                                }
                            }
                        }
                    }
                }
            }
        }
        for (String temp : passed) {
            //System.out.println(temp);
        }
        System.out.println(passed.size());
        output = output.concat(String.valueOf(passed.size()));
        return output;
    }
}
