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.solver;

import google.loader.ChallengeLoader;
import google.loader.ChallengeReader;

import java.io.FileInputStream;
import java.util.Properties;

public class Solver implements ChallengeConstants{

	private ChallengeReader reader;
	private String inputFileName;
	private String result;
	private final String path;

	public Solver(String aPath) {
		this.path = aPath;
		init();
		solve();
		writeResult();
	}

	private void solve() {
		ChallengeLoader loader = new ChallengeLoader(reader);
		loader.load(inputFileName);
		result = loader.getResult();
	}

	private void init() {
		try{
			String propFileName = path+DELIMITER+CHALLENGE_DEFINITION;
			Properties properties = new Properties();
			properties.load(new FileInputStream(propFileName));
			inputFileName = path+DELIMITER+(String)properties.get("fileName");
			String readerClassName = (String)properties.get("readerClassName");
			reader = (ChallengeReader) Class.forName(readerClassName).newInstance();
		}
		catch(Exception e){
			throw new RuntimeException(e);
		}
	}

	public String getResult(){
		return result;
	}


	public void writeResult(){
		String result = getResult();
		write(result);
	}


	private void write(String text) {
		ProblemPackageCreator.write(getResultFileName(), text);
	}
	
	private String getResultFileName() {
		return inputFileName+".result";
	}

	public static void main(String[] args) {
		String problem = CHALLENGE_NAME;
		String path = BASE_DIR+DELIMITER+problem;
		Solver solver = new Solver(path);
		String result = solver.getResult();
		System.out.println(result);
	}
}
