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 recycledNumbers;

import java.io.*;
import java.util.*;
public class Entry {

	private static ArrayList<Integer> cases=new ArrayList<Integer>();
	
	public static void main(String args[]) throws IOException
	{
		FileReader src=new FileReader("test.txt");
		FileWriter f=new FileWriter("output.txt");
		BufferedWriter out=new BufferedWriter(f);
		Scanner in=new Scanner(src);
		int iterate=in.nextInt();
		int i,j;
		int A,B;
		int n,m;
		
		HashSet<Double> dub=new HashSet<Double>();
		for(i=0;i<iterate;i++)
		{
			A=in.nextInt();
			B=in.nextInt();
			n=A;
			while(n< B)
			{
				for(j=1;j<Integer.toString(n).length();j++)
				{
					m=reverse(n,j);
					if((A<=n)&& (n<m) &&(m<=B) &&(m!=n))
					{
						dub.add((n*Math.pow(10,Integer.toString(n).length()))+m);
					}
				}
				n++;
			}
			cases.add(dub.size());
			dub.clear();
			
		}
		
		int index=1;
		for(int str:cases)
		{
			out.write(("Case #"+index+":\t"+str));
			out.write("\n");
			index++;
		}
		out.close();
		in.close();
	}
	
   
	private static int reverse(int n,int j)
	{
		String str=Integer.toString(n);
		String ans=str.substring(str.length()-j);
		String ans2=str.substring(0,str.length()-j);
		str=ans+ans2;
		int m=Integer.valueOf(str);
		return m;
	}
	
}
