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());
	}

}

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Scanner;
import java.util.StringTokenizer;
import java.util.TreeSet;


public class Recycle {
	static TreeSet<Integer> set = new TreeSet<Integer>();
	public static void main(String[] args) {
		System.out.println("\t****** Recycle numbers ******");
		long start = System.currentTimeMillis();
		String tokenStr;
		int test;int y=0,a=0,b=0;
		
		try {
			BufferedReader in = new BufferedReader(new FileReader("C-large.in"));
			PrintWriter out = new PrintWriter(new FileWriter("C-largeout.txt"));
			//read the first line of the file
			test = Integer.parseInt(in.readLine());
			for(int i = 1; i <= test; i++) {
				tokenStr = in.readLine();
				StringTokenizer tok = new StringTokenizer(tokenStr);
				a = Integer.parseInt(tok.nextToken());
				b = Integer.parseInt(tok.nextToken()); 
				/////////////
				set.clear();y=0;	
				for (int j=a;j<=b;j++) {
				  if (set.contains(j)) continue; 
				  y += group(j,a,b); 	
				}
			    ///////////////
			    out.println("Case #" + i +": " +y);
			}//for
			out.flush();out.close();in.close();
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
		
		long time = System.currentTimeMillis()-start;
		System.out.println("time = "+time);
	}

	private static int group(int j, int a, int b) {
		String s = String.valueOf(j);
		boolean zero=false;
		int len = s.length(); int msb = (int) Math.pow(10, (len-1));  
		int n=j;int count=0;
		for (int i=0;i<len;i++) {
		  if (zero)
			  zero=false; //salto n attuale in quanto ha leading zero
		  else if (n>=a && n<=b) {
			if (!set.contains(n)) {
				set.add(n);
				count++;
			}
		  }
		  //calcolo prox giro.
			int r = n %10;
			zero = (r==0);//se leading zero salto a prox iterazione 
			n = n/10 + r*msb;
		}
		return count*(count-1)/2; // nume coppie combinazioni di count su 2
	}
}
