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 com.my;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.util.HashSet;
import java.util.Set;

public class Main {

	public static void main(String[] args) {
		try {
			RecycledNumbers r = new RecycledNumbers();

			String fileLocation = "C://Training//Google//RecycledNumbers//src//com//my//smallInput.txt";

			BufferedReader reader = r.getInputFile(fileLocation);

			String line = reader.readLine();
			int count =1;
			while ( ( line = reader.readLine()) != null	 ) {

				String inputs[] = line.split(" " );
				int numCount = r.recycle(Integer.parseInt(inputs[0]),Integer.parseInt(inputs[1]));

				System.out.println("Case #" + count + ": " + numCount);
				
				++count;
			}

			//System.out.println(r.recycle(100,999));
		} catch (Exception e) {
			// TODO: handle exception
		}
	}
}

class RecycledNumbers	{


	public BufferedReader getInputFile(String fileLocation)	throws Exception{

		BufferedReader reader = new BufferedReader(new FileReader(new File(fileLocation)));

		return reader;
	}

	int recycle(int first, int second) throws Exception{

		int count = 0;

		for( int i=first; i<=second; ++i)	{

			String str = Integer.toString(i);
			Set  set = new HashSet();

			int div = 1;

			for( int j =0 ; j<str.length()-1; ++j)	{

				div = div*10;
				int trail = i % div ;

				String s = str.substring(0,str.length()- (j+1));
				int newNum = Integer.parseInt(trail + s);

				if( i < newNum && newNum <= second)	{
 					if( !set.contains(newNum))	{
						set.add(newNum);
						++count;
					}
				}
			}


		}

		return count;
	}
}
