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 sun.reflect.generics.tree.Tree;

import java.io.*;
import java.util.TreeSet;

/**
 * User: Andrii Baranov
 * Date: 14.04.12
 * Time: 14:11
 */
public class RecycledNumbers {
    public static void main(String args[]) throws IOException {
        BufferedReader br = new BufferedReader(new FileReader("in/C/C-large.in"));
        int testCases = Integer.parseInt(br.readLine());
        int results[] = new int[testCases];

        for(int i = 0; i < testCases; i++){
            String paramsStr = br.readLine();
            String[] params = paramsStr.split(" ");
            results[i] = countRecycled(Integer.parseInt(params[0]), Integer.parseInt(params[1]));
        }
        br.close();

        BufferedWriter bw = new BufferedWriter(new FileWriter("in/C/large-out.txt"));
        for(int i = 0; i < testCases; i++){
            bw.write("Case #" + (i + 1) + ": " + results[i]);
            if (i + 1 < testCases) {
                bw.write("\n");
            }
        }
        bw.close();

    }

    static int countRecycled(int A, int B) {
        String rep;
        int res = 0;
        for (int first = A; first < B; first++) {
            rep = Integer.toString(first);
            TreeSet<Integer> recNumbers = new TreeSet<Integer>();
            for (int j = rep.length() - 1; j > 0; j--) {
                if (rep.charAt(j) != '0') {
                    String replaced = rep.substring(j) + rep.substring(0, j);
                    Integer num = new Integer(replaced);
                    if (num.intValue() <= B && num.intValue() > first) {
                        recNumbers.add(num);
                    }
                }
            }
            res += recNumbers.size();
        }
        return res;
    }
}
