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.HashSet;
import java.util.Set;

/**
 * Created with IntelliJ IDEA.
 * User: Frederick
 * Date: 4/14/12
 * Time: 9:40 AM
 * To change this template use File | Settings | File Templates.
 */
public class RecycledNumbers {

    private static int solve(int a, int b) {
        int count = 0;
        for (int n = a; n < b; n++) {
            String nString = Integer.toString(n);
            int len = nString.length();
            Set<Integer> existing = new HashSet<Integer>();
            for (int i = 1; i < len; i++) {
                String mString = nString.substring(i) + nString.substring(0, i);
                int m = Integer.parseInt(mString);
                if (n < m && m <= b && existing.add(m)) {
                    count++;
                }
            }
        }
        return count;
    }

    public static void main(String[] args) throws IOException {
        File input = new File("C:\\Users\\Frederick\\Downloads\\C-large.in");
        File output = new File(input.getAbsolutePath() + ".out");
        BufferedReader in = new BufferedReader(new InputStreamReader(new FileInputStream(input)));
        PrintStream out = new PrintStream(output);
        int cases = Integer.parseInt(in.readLine());
        for (int i = 1; i <= cases; i++) {
            String[] s = in.readLine().split(" ");
            int a = Integer.parseInt(s[0]);
            int b = Integer.parseInt(s[1]);
            int solution = solve(a, b);
            String print = "Case #" + i + ": " + solution;
            System.out.println(print);
            out.println(print);
        }
    }

}
