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 google.loader;

import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.List;

public class ChallengeLoader {

	private List<Challenge> challenges;
	private final ChallengeReader reader;


	public ChallengeLoader(ChallengeReader reader){
		this.reader = reader;
	}


	public List<Challenge> load(String aPath){
		try{
			String input = readFileAsString(aPath);
			readChallenges(input);
			return 	challenges;
		}
		catch(Exception e){
			throw new RuntimeException(e);
		}
	}


	private String readFileAsString(String filePath) throws java.io.IOException{
		byte[] buffer = new byte[(int) new File(filePath).length()];
		BufferedInputStream f = null;
		try {
			f = new BufferedInputStream(new FileInputStream(filePath));
			f.read(buffer);
		} finally {
			if (f != null) try { f.close(); } catch (IOException ignored) { }
		}
		return new String(buffer);
	}


	private void readChallenges(String input) {
		String delimiter;
		if(input.indexOf("\r\n")>0){
			delimiter="\r\n";
		}else{
			delimiter="\n";
		}
		String[] lines = input.split(delimiter);
		challenges = reader.createChallenges(lines);
	}


	public String getResult() {
		StringBuffer res = new StringBuffer();
		for(Challenge challenge : challenges){
			res.append(challenge.getResult());
		}
		return res.toString();
	}

}