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;

/**
 * Class to represent each test case.
 * It will hold details like test case no, input to be operated and TestResult.
 * @author Sushant Deshpande
 *
 */
public class TestCase {

    /**
     * Variable to hold value for test case number.
     */
    private int caseNo;

    /**
     * Variable to hold lower limit.
     */
    private int low;

    /**
     * Variable to hold upper limit.
     */
    private int high;

    /**
     * Variable holding test case result.
     */
    private TestResult output;

    /**
     * Constructor for creating TestCase with case no.
     * @param caseNo int
     * @param low int
     * @param high int
     */
    public TestCase(final int caseNo, final int low, final int high) {
        this.caseNo = caseNo;
        this.low = low;
        this.high = high;
    }

    /**
     * Settter method for TestResult.
     * @param output TestResult
     */
    public final void setOutput(final TestResult output) {
        this.output = output;
    }

    public int getHigh() {
        return high;
    }

    public int getLow() {
        return low;
    }

    /**
     * Method to format the test output for printing in the report.
     * @return String formatted output for the given input.
     */
    public final String printTestResult() {
        StringBuilder resultBuilder = new StringBuilder("Case #");
        resultBuilder.append(caseNo).append(": ");
        resultBuilder.append(output.getTestOutput()).append("\n");
        return resultBuilder.toString();
    }
}