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();
		}


	}

}

import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.util.HashSet;


public class A {
	
public static int a(String str){
	
	int retVal = 0;
	
	String arr[] = str.split(" ");
	int n = Integer.parseInt(arr[0]);
	int m = Integer.parseInt(arr[1]);
	
	for(int i = n ; i < m; i++){
		String cur = Integer.toString(i);
		cur += cur;
		HashSet<String> set = new HashSet<String>();
		for(int j = 1; j < cur.length()/2 ; j++){			
			String val = cur.substring(j, j+cur.length()/2);
			int intVal = Integer.parseInt(val);			
			if(set.add(val) && intVal > i && intVal <= m){				
				retVal++;
				//System.out.println(retVal + ":" +cur.substring(cur.length()/2)+" : "+intVal);
			}
		}
		
	}
	
	
	return retVal;
	
}	
	
public static void main(String args[]){
		
		File file = new File("C-large.in");
		
		int T = 0;
		try{
			  FileInputStream fstream = new FileInputStream(file);
			
			  DataInputStream in = new DataInputStream(fstream);
			  BufferedReader br = new BufferedReader(new InputStreamReader(in));
			  String strLine;
			  if ((strLine = br.readLine()) != null)   {
				  T = Integer.parseInt(strLine);
			  }
			  int currentCase = 1;
			  while(T > 0 && currentCase <= T){
						
						String str= br.readLine();
						
						System.out.println("Case #"+currentCase+": " + a(str));
						currentCase++;
					}
			
			  in.close();
			    }catch (Exception e){
			  System.err.println("Error: " + e.getMessage());
			  }
		
		
		
	}
	
}
