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 );
    }
}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package RecycledNumbers;

import java.io.*;
import java.util.ArrayList;

/**
 *
 * @author Himeshi
 */
public class RecycledNumbers {

    public static void main(String[] args) {

        int A, B, N, pairs;
        String strLine, integers;

        try {

            BufferedReader br = new BufferedReader(new InputStreamReader(new DataInputStream(new FileInputStream("D:/Academic Work/Semester 5/Code Jam/C-small.in"))));

            while ((strLine = br.readLine()) != null) {

                N = Integer.parseInt(strLine);

                for (int i = 0; i < N; i++) {
                    integers = br.readLine();
                    String[] tokens = integers.split(" ");
                    A = Integer.parseInt(tokens[0]);
                    B = Integer.parseInt(tokens[1]);
                    pairs = calculate(A, B, i);
                    writeToFile(pairs, i);
                }

            }


        } catch (Exception e) {
            System.out.println("here is the exception"+e);
        }

    }

    private static int calculate(int A, int B, int i) {
        int pairs = 0;

        for (int index = A; index <= B; index++) {
            ArrayList<Integer> list = getPairs(index);

            for (int j = 0; j < list.size(); j++) {
                if (list.get(j) <= B && list.get(j)>index) {
                   //System.out.println(""+index+" "+list.get(j));
                    pairs++;
                }
            }
        }

        return pairs;
    }

    private static ArrayList<Integer> getPairs(int index) {

        ArrayList<Integer> list = new ArrayList<Integer>();
        String temp = Integer.toString(index);
        int length = temp.length();

        char[] buffer = temp.toCharArray();

        if (index < 10) {
            return list;
        } else {


            for (int numbers = 1; numbers < length; numbers++) {
              
                char c=buffer[length-1];
                
                for(int k=buffer.length-1;k>0;k--)
                {
                    buffer[k]=buffer[k-1];                    
                }
                
                buffer[0]=c;
                String s=new String(buffer);
                int number=Integer.parseInt(s);
                
                if(!list.contains(number))
                    list.add(number);
            }
            return list;
        }
    }
    
     private static void writeToFile(int a,int N) {
        try {
            // Create file 
            FileWriter fstream = new FileWriter(new File("D:/Academic Work/Semester 5/Code Jam/out.txt"),true);
            BufferedWriter out = new BufferedWriter(fstream);
           String str="Case #"+(N+1)+": "+a+"\r\n";
           out.append(str);
            //Close the output stream
            out.close();
        } catch (Exception e) {//Catch exception if any
            System.err.println("Error: " + e.getMessage());
        }
    }
}
