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.*;
import java.util.*;
public class q3
{
	public static void main(String []args) throws IOException
	{
		
		
		 PrintWriter pw=new PrintWriter(new BufferedWriter(new FileWriter("output.txt")));
	   BufferedReader br=new BufferedReader(new FileReader("input.txt"));
		int arr[]=new int[2];
		int limit=Integer.parseInt(br.readLine());
		String x2;
		int count=0;
		for(int li=1;li<=limit;li++)
	   {count=0;
	   	   x2=br.readLine();
	   	      int j=0;
	   	   StringTokenizer st =new StringTokenizer(x2);
	   	   while (st.hasMoreElements()) {

              String token = st.nextElement().toString();
               arr[j]=Integer.parseInt(token);
                 j++;
           }
           
           for(int a1=arr[0];a1<=arr[1];a1++)
           { 
           	  String x1=String.valueOf(a1);
           	  int l=x1.length();
           	  String final1="";
           	  for(int x=1;x<=(l-1);x++)
		     	{
			
			      final1=x1.substring(l-x,l)+x1.substring(0,l-x);
			          int check=Integer.parseInt(final1);
			      if(a1<check&&check<=arr[1])
			      {
			      	      count++;
			        
			          }
			    }
           	  final1="";
           }    
            
	        pw.println("Case #"+li+": "+count);
	   
	   }
	    pw.close();
	}
}