package jp.funnything.competition.util;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.math.BigDecimal;
import java.math.BigInteger;

import org.apache.commons.io.IOUtils;

public class QuestionReader {
    private final BufferedReader _reader;

    public QuestionReader( final File input ) {
        try {
            _reader = new BufferedReader( new FileReader( input ) );
        } catch ( final FileNotFoundException e ) {
            throw new RuntimeException( e );
        }
    }

    public void close() {
        IOUtils.closeQuietly( _reader );
    }

    public String read() {
        try {
            return _reader.readLine();
        } catch ( final IOException e ) {
            throw new RuntimeException( e );
        }
    }

    public BigDecimal[] readBigDecimals() {
        return readBigDecimals( " " );
    }

    public BigDecimal[] readBigDecimals( final String separator ) {
        final String[] tokens = readTokens( separator );

        final BigDecimal[] values = new BigDecimal[ tokens.length ];
        for ( int index = 0 ; index < tokens.length ; index++ ) {
            values[ index ] = new BigDecimal( tokens[ index ] );
        }

        return values;
    }

    public BigInteger[] readBigInts() {
        return readBigInts( " " );
    }

    public BigInteger[] readBigInts( final String separator ) {
        final String[] tokens = readTokens( separator );

        final BigInteger[] values = new BigInteger[ tokens.length ];
        for ( int index = 0 ; index < tokens.length ; index++ ) {
            values[ index ] = new BigInteger( tokens[ index ] );
        }

        return values;
    }

    public int readInt() {
        final int[] values = readInts();

        if ( values.length != 1 ) {
            throw new IllegalStateException( "Try to read single interger, but the line contains zero or multiple values" );
        }

        return values[ 0 ];
    }

    public int[] readInts() {
        return readInts( " " );
    }

    public int[] readInts( final String separator ) {
        final String[] tokens = readTokens( separator );

        final int[] values = new int[ tokens.length ];
        for ( int index = 0 ; index < tokens.length ; index++ ) {
            values[ index ] = Integer.parseInt( tokens[ index ] );
        }

        return values;
    }

    public long readLong() {
        final long[] values = readLongs();

        if ( values.length != 1 ) {
            throw new IllegalStateException( "Try to read single interger, but the line contains zero or multiple values" );
        }

        return values[ 0 ];
    }

    public long[] readLongs() {
        return readLongs( " " );
    }

    public long[] readLongs( final String separator ) {
        final String[] tokens = readTokens( separator );

        final long[] values = new long[ tokens.length ];
        for ( int index = 0 ; index < tokens.length ; index++ ) {
            values[ index ] = Long.parseLong( tokens[ index ] );
        }

        return values;
    }

    public String[] readTokens() {
        return readTokens( " " );
    }

    public String[] readTokens( final String separator ) {
        return read().split( separator );
    }
}

package qualifyingRound;

import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;

public class RecycledNumbers 
{
	public static void main (String [] args) throws FileNotFoundException
	{
		Scanner in = new Scanner (new File ("input.txt"));
		int numLines = Integer.parseInt(in.nextLine());
		int i = 1;
		while (in.hasNextLine())
		{	
			System.out.print("Case #" + i + ": ");
			int low = in.nextInt();
			int high = in.nextInt();
			int count = 0;
			for (int c = low; c < high; c++)
			{	
//				int temp = computePermutations(c,high);
//				System.out.println(c + " " + temp);
//				count+=temp;
				count += computePermutations(c,high);
			}
			System.out.println(count);
			i = i+1;
		}
//		System.out.println(computePermutations(2212,2222));
	}
	private static int computePermutations (int low, int high)
	{
		String str = "" + low;
		int length = str.length();
		int count = 0;
		int temp = low;
		for (int i = 0; i < length; i++)
		{
			int last = temp % 10;
			temp = temp/10 + last * pow10(length - 1);
//			System.out.println(low + " " + temp);
			if (temp > low && temp <= high)
			{
//				System.out.println(low + " " + temp);
				count++;
			}
		}
		return count;
		
	}
	private static int pow10 (int pow)
	{
		int toReturn = 1;
		for (int i = 0; i < pow; i++)
		{
			toReturn *= 10;
		}
		return toReturn;
	}
}
