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;
	}
}
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;


public class ProblemaC {
	
	private final static String RUTA="C:/Users/Rafael/Documents/Estudio/OtherStuff/Google/CodeJam/ProblemaC/";
	
	public ProblemaC(){
		try {
			FileOutputStream fos=new FileOutputStream(new File(RUTA+"resultado.txt"));
			BufferedReader br=new BufferedReader(new FileReader(RUTA+"C-small-attempt3.in"));
			PrintWriter pw=new PrintWriter(fos);
			
			String a=br.readLine();
			System.out.println("Ignore"+a);
			int contador=0;
			while((a=br.readLine())!=null)
			{
				contador++;
				System.out.println("Case #"+contador+": "+a);
				String first=a.split(" ")[0];
				String second=a.split(" ")[1];
				int temp=analizar(first, second);
				System.out.println(temp);
				pw.println("Case #"+contador+": "+temp );
			}
			pw.close();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
	
	public int analizar(String first, String second ){
		ArrayList<String> dupList=new ArrayList<String>();
		int contador=0;
		int primero=Integer.parseInt(first);
		int segundo=Integer.parseInt(second);
		for(int i=primero;i<=segundo;i++){
			for(int j=i+1;j<=segundo;j++){
				for(int k=1;k<first.length();k++){
					String uno=""+i;
					String dos=""+j;
					String fm=convert(k, uno);
					if(fm.equals(dos)&&!dupList.contains(uno+"-"+dos))
					{
						if(uno.startsWith("0")||dos.startsWith("0")){						
							System.out.println(uno+"-"+dos);
						}
//						System.out.println(uno+","+dos);
						contador++;
						dupList.add(uno+"-"+dos);
					}
				}
			}
		}
		return contador;
	}
	
	public String convert(int k, String primero){
		String acumulador="";
		for(int i=0;i<k;i++)	
		{
			acumulador=primero.charAt(primero.length()-1)+acumulador;
			primero=primero.substring(0, primero.length()-1);
		}
		primero=acumulador.concat(primero);
		
		return primero;
	}
	
	/**
	 * @param args
	 */
	public static void main(String[] args) {
			new ProblemaC();
	}
}
