import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

public class Q3M {
	public static void main(String[] args) throws Exception {
		compute();
	}

	private static void compute() throws Exception {
		BufferedReader br = new BufferedReader(new FileReader(new File(
				"C:\\work\\Q3\\C-small-attempt0.in")));
		String line = null;
		int i = Integer.parseInt(br.readLine());
		List l = new ArrayList();
		for (int j = 0; j < i; j++) {
			line = br.readLine();
			String[] nums = line.split(" ");
			l.add(calculate(nums));
		}
		writeOutput(l);
	}

	private static int calculate(String[] nums) {
		int min = Integer.parseInt(nums[0]);
		int max = Integer.parseInt(nums[1]);
		int count = 0;
		List l = new ArrayList();
		for (int i = min; i <= max; i++) {
			for (int times = 1; times < countDigits(i); times++) {
				int res = shiftNum(i, times);
				if (res <= max && i < res) {
					if ((!l.contains((i + ":" + res)))) {
						l.add(i + ":" + res);
						l.add(res + ":" + i);
						count++;
					}
				}
			}
		}
		return count;
	}

	private static boolean checkZeros(int temp, int res) {
		if (temp % 10 == 0 || res % 10 == 0)
			return false;
		return true;
	}

	private static int shiftNum(int n, int times) {
		int base = (int) Math.pow(10, times);
		int temp2 = n / base;
		int placeHolder = (int) Math.pow((double) 10,
				(double) countDigits(temp2));
		int res = placeHolder * (n % base) + temp2;
		if (countDigits(res) == countDigits(n)) {
			return res;
		} else {
			return 2000001;
		}
	}

	public static int countDigits(int x) {
		if (x < 10)
			return 1;
		else {
			return 1 + countDigits(x / 10);
		}
	}

	private static void writeOutput(List l) throws Exception {
		StringBuffer b = new StringBuffer();
		int i = 1;
		BufferedWriter br = new BufferedWriter(new FileWriter(new File(
				"C:\\work\\Q3\\ans.txt")));
		for (Iterator iterator = l.iterator(); iterator.hasNext();) {
			br.write("Case #" + i++ + ": " + iterator.next());
			br.newLine();
		}
		br.close();
	}

}
import java.io.*;
import java.util.HashSet;
import java.util.Scanner;

/**
 * Created by IntelliJ IDEA.
 * User: singh
 * Date: 14/4/12
 * Time: 4:46 AM
 * To change this template use File | Settings | File Templates.
 */
public class RecycleNumbers {
    public static void main(String[] args) throws IOException {
//        Scanner sc=new Scanner(System.in);
        Scanner sc=new Scanner(new File("C:\\Users\\singh\\Documents\\codejam\\input.in"));
        int testCases=sc.nextInt();
        String outPut="";
        PrintWriter writer=new PrintWriter("C:\\Users\\singh\\Documents\\codejam\\out0.in");
//        BufferedWriter bf=new BufferedWriter(new FileWriter("C:\\Users\\singh\\Documents\\codejam\\out0.txt"));
        for(int iterator=0;iterator<testCases;iterator++)
        {
            HashSet<String> set=new HashSet<String>();
            int counter=0;
            int A=sc.nextInt();
            int B=sc.nextInt();
//            int BFirst=Integer.parseInt((B+"").charAt(0)+"");
            for(int currentN=A;currentN<B;currentN++)
            {
                String nString=currentN+"";
                if(iterator==3)
                {
                    System.out.println();
                }
//                int nFirst=Integer.parseInt(nString.charAt(0)+"");
//                if(nFirst>BFirst)
//                {
//                    break;
//                }
//                if(!nString.endsWith("0"))
//                {
                for(int i=1;i<=nString.length()-1;i++)
                {
                    String nSubString=nString.substring(nString.length()-i,nString.length())+nString.substring(0,nString.length()-i);
                    if(!nSubString.startsWith("0"))
                    {
                    if(!nString.equals(nSubString))
                    {
                    int nSubInt=Integer.parseInt(nSubString);
                    if(nSubInt<=B && nSubInt>(Integer.parseInt(nString)))
                    {
                        if(!set.contains(nString+","+nSubString))
                        {
                            set.add(nString+","+nSubString);
                            counter++;
                        }
                    }
                    }
                    }
                }
//                }
            }
//            }
         outPut+="Case #"+(iterator+1)+": "+counter+"\n";
        }
           writer.write(outPut);
            writer.flush();
            writer.close();
    }
}
