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 recyclednumbers;

import java.io.*;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 *
 * @author WC
 */
public class CodeJamFileManager {
	private final static String problemIntro = "Problem reading file: ";
	private final static String location = "C:\\CodeJamTests\\";
	
	public static String getStringOfFile(String filename) {
		String filepath = location + filename;
		byte[] buffer = new byte[(int) new File(filepath).length()];
    BufferedInputStream stream = null;
    try {
        stream = new BufferedInputStream(new FileInputStream(filepath));
        stream.read(buffer);
    }
		catch (Exception ex) { 
			return problemIntro + ex.getMessage();
		}
		finally {
			if (stream != null) {
				try { 
					stream.close(); 
				}
				catch (IOException ex) {
					return problemIntro + ex.getMessage(); 
				}
			}
    }
    return new String(buffer);
	}
	
	public static int getIntFromFirstLineOfFile(String filename, String separator) {
		String[] lines = getTextLinesOfFile(filename, separator);
		int i = 1;
		return extractInt(lines[0]);
	}
	
	public static String[] getTextLinesOfFile(String filename, String separator) {
		String fileStr = getStringOfFile(filename);
		return fileStr.split(separator);
	}
	
	public static void saveOutputFile(String output, String filename, String separator) {
		String filepath = location + filename;
		try {
			File outFile = new File(filepath);
			FileWriter writer = new FileWriter(outFile);
			BufferedWriter bWriter = new BufferedWriter(writer);
			bWriter.write(output);
			bWriter.close();
		}
		catch (Exception ex) {
			System.out.println("Failed to save file with error: " + ex.getMessage());
		}
	}
	
		
	private static int extractInt(String line) {
		Matcher intMatcher = Pattern.compile("[0-9]*").matcher(line);
		int i = 0;
		if (intMatcher.find()) {
			String numStr = intMatcher.group(0);
			i = Integer.parseInt(numStr);
		}
		return i;
	}
}
