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 );
    }
}

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Set;
import java.util.TreeSet;


public class NumberQueue {
	String number;
	
	public NumberQueue(int number) {
		this.number = number + "";
	}
	
	public void cycle() {
		char front = number.charAt(0);
		number = number.substring(1) + front;
	}
	
	public List<Pair> distinctRoations(int min, int max) {
		List<Pair> pairs = new ArrayList<Pair>();
		String original = number;
		int origNum = toInteger();
		for(int i = 0; i < number.length(); i++) {
			if(!number.equals(original)) {
				// check bounds
				int numInt = toInteger();
				if(numInt >= min && numInt <= max) {
					Pair ap = new Pair(origNum, numInt);
					if(!pairs.contains(ap)) {
						pairs.add(ap);
					}
				}
				cycle();
			} else {
				cycle();
			}
		}
		number = original;
		return pairs;
	}
	
	public int toInteger() {
		return Integer.valueOf(number);
	}
	
	public class Pair implements Comparable<Pair>{
		public int first;
		public int second;
		
		public Pair(int f, int s) {
			first = f;
			second = s;
		}
		
		// override default equals
		public boolean equals(Object o) {
			Pair other = (Pair) o;
			return (first == other.first && second == other.second) || (first == other.second && second == other.first);
		}
		
		public String toString() {
			return "" + first + "<=>" + second;
		}
		
		// compare to for ordering - mostly debugging
		public int compareTo(Pair other) {
			if(equals(other)) {
				return 0;
			} else {
				return first - other.first;
			}
		}
	}
}
