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 recycle {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		try {
			FileInputStream fstream = new FileInputStream("C:/input.txt");
			DataInputStream in = new DataInputStream(fstream);
			BufferedReader br = new BufferedReader(new InputStreamReader(in));
			int numOfLines = Integer.parseInt(br.readLine());	
		
			for(int i = 1; i <= numOfLines; i++){
				String str = br.readLine();
				String numbers[] = str.split(" ");
				int result = Recycle(Integer.parseInt(numbers[0]),Integer.parseInt(numbers[1]));
				System.out.println("Case #" + i + ": " + result);
				
			}
		//int A = 1111, B = 2222;
			 
			
			
	}
		catch (Exception e) {
			// TODO: handle exception
		}
}

	private static int Recycle(int A, int B) {
		// TODO Auto-generated method stub

		int j = 0, count = 0;
		for (int i = A; i <= B ; i++)
		{
			String temp = Integer.toString(i);
			ArrayList<Integer> Number = new ArrayList<Integer>();
			for (int k = 0; k < temp.length(); k++){
				
					String rotated = temp.substring(temp.length()-k, temp.length());
					String other_half = temp.substring(0, temp.length()-k);
					String total = rotated+other_half;
					int rot_number = Integer.parseInt(total);
					if(rot_number <= B && rot_number >= A && rot_number < i)
					{
						if(contains(Number, rot_number))
						{}
							//do nothing
						else{
		//					System.out.println(i + "; "+rot_number);
							Number.add(rot_number);
							count++;
						}
						
						
					}
				
			}
			
		}
		
		return count;
	}

	private static boolean contains(ArrayList<Integer> number, int rot_number) {
		// TODO Auto-generated method stub
		
		for(int i = 0; i < number.size(); i++)
		{
			if (number.get(i) == rot_number)
			{
				return true;
			}
				
		}
		
		return false;
		
	}

}
