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.google.codejam.recycle;

import java.io.FileReader;
import java.io.IOException;
import java.io.LineNumberReader;
import java.util.LinkedList;
import java.util.List;


/**
 * Class to read input file and prepare list of test cases.
 * @author Sushant Deshpande
 */
public class InputReader {
    /**
     * Method for preparing List of Test Cases.
     * @param inputFilePath String
     * @return List<TestCase>
     */
    public static List<TestCase> prepareTestCases(final String inputFilePath)  {
        final List<TestCase> testCases = new LinkedList<TestCase>();
        LineNumberReader lineReader = null;
        try {
            lineReader = new LineNumberReader(new FileReader(inputFilePath));
            final String line = lineReader.readLine();
            final int noOfTCs = Integer.parseInt(line);
            for(int i = 0; i < noOfTCs; i++) {
                String [] inputLine = lineReader.readLine().split(" ");
                int low = Integer.parseInt(inputLine[0]);
                int high = Integer.parseInt(inputLine[1]);
                TestCase testCase = new TestCase(i + 1, low, high);
                testCases.add(testCase);
            }
        } catch(IOException ie) {
              System.out.println("Problem occured while reading input file. " + ie.getMessage());
        } finally {
            if(lineReader != null) {
                try {
                    lineReader.close();
                } catch(IOException ie) {
                    System.out.println("Some problem occured while closing input file reader " + ie.getMessage() );
                }
            }
        }
        return testCases;
    }
}