package it.simone.google.code.jam2012;

import java.util.HashSet;
import java.util.Set;

public class RecycledNumber implements GoogleCodeExercise {

	int a = 0;
	int b = 0;
	Set<Couple> distinctCouple = null;
	long maxTime = 0;

	private class Couple {
		int x = 0;
		int y = 0;

		public Couple(int x, int y) {
			this.x = x;
			this.y = y;
		}

		@Override
		public int hashCode() {
			final int prime = 31;
			int result = 1;
			result = prime * result + getOuterType().hashCode();
			result = prime * result + x;
			result = prime * result + y;
			return result;
		}

		@Override
		public boolean equals(Object obj) {
			if (this == obj)
				return true;
			if (obj == null)
				return false;
			if (getClass() != obj.getClass())
				return false;
			Couple other = (Couple) obj;
			if (!getOuterType().equals(other.getOuterType()))
				return false;
			if (x == other.x && y == other.y)
				return true;
			if (x == other.y && y == other.x)
				return true;
			return false;
		}

		private RecycledNumber getOuterType() {
			return RecycledNumber.this;
		}

	}

	@Override
	public String execute(String line) {
		int result = 0;

		String[] data = line.split(" ");
		a = Integer.parseInt(data[0]);
		b = Integer.parseInt(data[1]);
		initialize();

		int n = a;
		//
		while (n <= b) {
			result += analize(n);
			n++;
//			if (n % 1000 == 0)
//				System.out.println(n);
		}

		System.out.println(result);
		return "" + result;
	}

	@Override
	public void initialize() {
		distinctCouple = new HashSet<Couple>();
	}

	private int analize(int number) {
		String numString = "" + number;
		initialize();
		for (int i = 1; i < numString.length(); i++) {
			int m = shift(numString, i);
			if (a <= number && number < m && m <= b) {
				Couple couple=new Couple(number,m);
				if (!distinctCouple.contains(couple))
					distinctCouple.add(couple);
			}
		}
		return distinctCouple.size();
	}

	private int shift(String numString, int posx) {

		String result = null;
		result = "" + numString.substring(posx) + numString.substring(0, posx);

		return Integer.parseInt(result.toString());
	}

}

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

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;

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

    static int caseNum = 0;
    static BufferedReader reader;
    static BufferedWriter writer;
    
    public static void main(String[] args) throws FileNotFoundException, IOException {
        
        reader = new BufferedReader(new InputStreamReader(new FileInputStream("./in")));
        
        new File("./out").createNewFile();
        writer = new BufferedWriter(new OutputStreamWriter(new FileOutputStream("./out")));
        
        reader.readLine();  // Skip numberofcases
        String input;
        while ((input = reader.readLine()) != null) {
            input = input.trim();
            String[] numbers = input.split(" ");
            write(getPairCount(numbers[0], numbers[1]));
        }
    }
    
    static int getPairCount(String aStr, String bStr) {
        
        int a = Integer.parseInt(aStr);
        int b = Integer.parseInt(bStr);
        
        if (a < 10 || a == b) {
            return 0;
        }
        
        HashMap<Integer, Set<Integer>> pairs = new HashMap<Integer, Set<Integer>>();
        
        for (int i = a; i <= b; i++) {
            String iStr = Integer.toString(i);
            for (int swaplength = 1; swaplength < iStr.length(); swaplength++) {
                
                int indexToSwap = iStr.length() - swaplength;
                
                if (iStr.charAt(indexToSwap) != '0' && Integer.parseInt("" + iStr.charAt(indexToSwap)) <= Integer.parseInt("" + bStr.charAt(0))) {
                    
                    String newString = iStr.substring(indexToSwap) + iStr.substring(0, indexToSwap);
                    
                    int newInt = Integer.parseInt(newString);
                    if (newInt <= b && newInt > i) {
                        
                        if (pairs.containsKey(newInt)) {
                            
                           if (pairs.get(newInt).contains(i)) {
                               continue;
                           }
                        }
                        
                        Set<Integer> values = pairs.get(i);
                        if (values == null) {
                            
                            values = new HashSet<Integer>();
                            pairs.put(i, values);
                        }
                        
                        values.add(newInt);
                        
                        /*boolean alreadyFound = false;
                        for (int[] pair: pairs) {
                            
                            if ((pair[0] == newInt || pair[1] == newInt) && (pair[0] == i || pair[1] == i)) {
                                
                                alreadyFound = true;
                                break;
                            }
                        }
                        
                        if (!alreadyFound) {
                            pairs.add(new int[]{i, newInt});
                            count++;
                        }*/
                    }
                }
            }
        }
        
        return countEntries(pairs);
    }
    
    public static int countEntries(Map<Integer, Set<Integer>> map) {
        
        int count = 0;
        for (Set set: map.values()) {
            
            count += set.size();
        }
        
        return count;
    }
    
    public static void write(Object out) throws IOException {
        
        caseNum += 1;
        writer.write(String.format("Case #%s: %s%n", caseNum, out));
        writer.flush();
    }
}
