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.FileOutputStream;
import java.io.FileReader;
import java.io.OutputStream;
import java.io.PrintStream;
import java.util.HashSet;

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
/**
 *
 * @author bgamlath
 */
public class Main {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) throws Exception {
        // TODO code application logic here
        Integer.parseInt("00001");
        BufferedReader in = new BufferedReader(new FileReader("input.txt"));
        PrintStream out = new PrintStream("output.txt");
        int n = Integer.parseInt(in.readLine());
        for(int i = 1; i<=n; i++){
            System.out.println(i);
            out.println("Case #" + i + ": " + getRes(in.readLine()));
        }
    }
    static int getRes(String str){
        String[] m = str.split(" ");
        int a = Integer.parseInt(m[0]);
        int b = Integer.parseInt(m[1]);
        int res = 0;
        for(int i = a; i<=b; i++){
            res += count(i, b);
        }
        return res;
    }

    static int count(int i, int b){
        HashSet<Integer> k = new HashSet<Integer>();
        String s = i + "";
        int len = s.length();
        int t = i;
        for(int  j = 1; j< len; j++){
            k.add(Integer.parseInt((s.substring(j) + s.substring(0,j))));
        }
        int res = 0;
        for(int j: k){
            if((j+"").length()==len && j>i && j<=b)
                res++;
        }
        return res;
        
    }
}
