import java.io.*;

class code1
{
	public static void main(String args[]) throws Exception 
	{
		File ii = new File ("C-small-attempt1.in");
		FileInputStream fis = new FileInputStream(ii);
		BufferedReader  br = new BufferedReader(new InputStreamReader (fis));
		int cases = Integer.parseInt(br.readLine());
		FileOutputStream fout = new FileOutputStream ("output.txt");
		DataOutputStream dout = new DataOutputStream (fout);
		int total=0;
		for(int i=0;i<cases;i++){
		String temp = br.readLine();
		String parts [] = temp.split(" ");
		int lower = Integer.parseInt(parts[0]);
		int upper = Integer.parseInt(parts[1]);
		System.out.println(lower+" "+upper);
		
		for(int j=lower;j<=upper;j++)
		{
			int abc = j;int length=0;
			if(j<10)continue;
			while (abc!=0){abc/=10;length++;}
			abc=j;
			for(int m=0;m<length-1;m++){
				int shift = abc%10;
				abc=abc/10;
				System.out.println("hi "+j);
				abc=abc+shift*power(10,length-1);
				if(abc<=upper&&shift!=0&&abc>j)total++;
				System.out.println(total);
			}
		}
 		dout.writeBytes("Case #"+(i+1)+ ": "+total+"\n");
 		total=0;
		}//for close
		
	}

	private static int power(int i, int j) {
		int no=1;
		for(int a=0;a<j;a++){no=10*no;}
		return no;
	}
}
/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package gcodejam2012;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.PrintStream;
import java.math.BigInteger;
import java.util.LinkedList;
import java.util.Scanner;

/**
 *
 * @author alei
 */
public class C {
    public static void main(String[] Args) throws FileNotFoundException{
        Scanner sn = new Scanner(new FileInputStream("c.in"));
        System.setOut(new PrintStream("c.out"));
        int nCases = sn.nextInt();
        for(int i=0;i<nCases;i++){
            //System.out.println("Case #"+(i+1));
            sn.nextLine();            
            int A = sn.nextInt();
            int B = sn.nextInt();
            int nRec = calcRecycled(A,B);
            System.out.println("Case #"+(i+1)+": "+nRec);
        }
    }
    private static int calcRecycled(int A, int B) {
        int nRecycleds = 0;
        for(int n=A;n<=B;n++){
            String strNumber = n+"";            
            String curFt = "";
            LinkedList<String>pairs = new LinkedList<>();
            for(int j=0;j<strNumber.length()-1;j++){                                                        
                char curChar = strNumber.charAt(strNumber.length()-j-1);                
                if(curChar!='0'){
                    curFt =curChar + curFt;
                    String m = curFt+strNumber.substring(0,strNumber.length()-j-1);
                    int mint = Integer.parseInt(m);
                    if(mint>n){
                        if(mint>=A && mint <=B){
                            if(!pairs.contains(m)){
                                nRecycleds++;
                                pairs.add(m);
                            }
                            
                        }
                    }                   
                }              
                else{
                    curFt =curChar + curFt;
                }
            }
            
        }
        return nRecycleds;
    }
}
