import java.util.Scanner;
import java.io.*;
import java.lang.Math;


public class C{
	public static int recycle(String str){
		String[] numbers = str.split(" ");
		int min = Integer.parseInt(numbers[0]);
		int max = Integer.parseInt(numbers[1]);
		int ret = 0;

		for(int i = min; i < max; i++){
			String num = i + "";
			int len = num.length();
			int k = i;
			for(int j = 1; j < len; j++){
				k = (k/10) + (int)java.lang.Math.pow(10.0,(double)(len-1))*(k%10);
				if (k > i && k <= max)
					ret++;
				else if(k == i)
					break;
			}
		}

		return ret;
	}

	public static void main(String[] args){
		Scanner sc = null;
		String next;
		int out;
		try{
			sc = new Scanner(new File("C-large.in"));
			int cases = Integer.parseInt(sc.nextLine());
			int current = 0;
			

			FileWriter fs = new FileWriter("output.txt");
			BufferedWriter buff = new BufferedWriter(fs);
			while(current < cases){
				next = sc.nextLine();
				current++;
				out = recycle(next);
				buff.write("Case #" + current + ": " + out + "\n");
			}
			buff.close();
		}
		catch(Exception ex){}
	}
}
package com.my;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.util.HashSet;
import java.util.Set;

public class Main {

	public static void main(String[] args) {
		try {
			RecycledNumbers r = new RecycledNumbers();

			String fileLocation = "C://Training//Google//RecycledNumbers//src//com//my//smallInput.txt";

			BufferedReader reader = r.getInputFile(fileLocation);

			String line = reader.readLine();
			int count =1;
			while ( ( line = reader.readLine()) != null	 ) {

				String inputs[] = line.split(" " );
				int numCount = r.recycle(Integer.parseInt(inputs[0]),Integer.parseInt(inputs[1]));

				System.out.println("Case #" + count + ": " + numCount);
				
				++count;
			}

			//System.out.println(r.recycle(100,999));
		} catch (Exception e) {
			// TODO: handle exception
		}
	}
}

class RecycledNumbers	{


	public BufferedReader getInputFile(String fileLocation)	throws Exception{

		BufferedReader reader = new BufferedReader(new FileReader(new File(fileLocation)));

		return reader;
	}

	int recycle(int first, int second) throws Exception{

		int count = 0;

		for( int i=first; i<=second; ++i)	{

			String str = Integer.toString(i);
			Set  set = new HashSet();

			int div = 1;

			for( int j =0 ; j<str.length()-1; ++j)	{

				div = div*10;
				int trail = i % div ;

				String s = str.substring(0,str.length()- (j+1));
				int newNum = Integer.parseInt(trail + s);

				if( i < newNum && newNum <= second)	{
 					if( !set.contains(newNum))	{
						set.add(newNum);
						++count;
					}
				}
			}


		}

		return count;
	}
}
