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package year_2012.qualification;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashSet;
import java.util.Set;

/**
 *
 * @author paul
 * @date 14 Apr 2012
 */
public class QuestionC {

    private static Set<Integer> getCycle(int x) {

        String s = Integer.toString(x);
        Set<Integer> set = new HashSet<Integer>();
        set.add(x);
        for (int c = 1; c < s.length(); c++) {
            String t = s.substring(c).concat(s.substring(0, c));
            set.add(Integer.parseInt(t));
        }
        return set;
        
    }

    private static Set<Integer> mask(Set<Integer> set, int a, int b) {
        Set<Integer> result = new HashSet<Integer>();

        for (int x : set) {
            if (x >= a && x <= b) {
                result.add(x);
            }
        }
        
        return result;

    }


    public static void main(String[] args) throws FileNotFoundException, IOException {

        String question = "C";

//        String name = "large";
        String name = "small-attempt0";
//        String name = "test";

        String filename = String.format("%s-%s", question, name);

        BufferedReader input = new BufferedReader(
                new FileReader(String.format("/home/paul/Documents/code-jam/2012/qualification/%s.in",
                filename)));

        String firstLine = input.readLine();

        PrintWriter pw = new PrintWriter(new File(
                String.format("/home/paul/Documents/code-jam/2012/qualification/%s.out", filename)));


        int T = Integer.parseInt(firstLine);

        // Loop through test cases.
        for (int i = 0; i < T; i++) {

//             Read data.
            String[] tokens = input.readLine().split(" ");

//            int N = Integer.parseInt(input.readLine());

            int A = Integer.parseInt(tokens[0]);
            int B = Integer.parseInt(tokens[1]);

//            System.out.format("%d, %d\n", A, B);

            boolean[] used = new boolean[B+1];
            int total = 0;
            for (int n = A; n <= B; n++) {
                if (!used[n]) {
                    Set<Integer> set = mask(getCycle(n), A, B);
                    int k = set.size();
                    total += (k * (k-1))/2;
                    for (int m : set) {
                        used[m] = true;
                    }
                }
            }

            pw.format("Case #%d: %d\n", i + 1, total);
        }

        pw.close();

    }

}

import java.io.BufferedReader;
import java.io.BufferedWriter;
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.ArrayList;


public class RecycledNumbers {
	private static int T;
	private static ArrayList<Integer> lowerLimit, upperLimit;
	private static ArrayList<Integer> numOfPairs;
	
	public static void main(String[] args) {
		readInputFile ();
		
		getNumberOfRecycledPairs ();
		
		writeOutputFile ();
	}
	
	private static void readInputFile () {
		numOfPairs = new ArrayList<Integer> ();
		lowerLimit = new ArrayList<Integer> ();
		upperLimit = new ArrayList<Integer> ();
		String line = "";
		
		try {
			BufferedReader bufferedReader = new BufferedReader (new InputStreamReader (new FileInputStream ("input/C-small-attempt0.in")));
			
			line = bufferedReader.readLine ();
			T = Integer.parseInt (line);
			
			while ((line = bufferedReader.readLine ()) != null) {
				String [] dataSet = line.split (" ");
				
				lowerLimit.add (Integer.parseInt (dataSet [0]));
				upperLimit.add (Integer.parseInt (dataSet [1]));
			}
			
			System.out.println (lowerLimit + "\n" + upperLimit);
			bufferedReader.close ();
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
	
	private static void getNumberOfRecycledPairs () {
		for (int i = 0; i < T; i++) {
			int numOfValidPairs = 0;
			
			for (int j = lowerLimit.get (i); j < upperLimit.get (i); j++) {				
				int numOfDigits = String.valueOf (j).length ();
				//int num = j;
				
				for (int k = 1; k < numOfDigits; k++) {					
					//num = ((num % (int)Math.pow (10, numOfDigits - 1)) * 10 + 
					//		(num / (int)Math.pow (10, numOfDigits - 1)));
					int num = ((j % (int)Math.pow (10, k)) * (int)Math.pow (10, numOfDigits - k)) + (j / (int)Math.pow (10, k));
					
					//if (num / (int)Math.pow (10, numOfDigits - 1) > 0) {
					if (String.valueOf (num).length() == String.valueOf (j).length()) {
						if (j < num && num <= upperLimit.get (i)) {
							numOfValidPairs++;
						}
					}
				}
			}
			numOfPairs.add (numOfValidPairs);
		}
	}
	
	private static void writeOutputFile () {
		try {
			BufferedWriter bufferedWriter = new BufferedWriter (new OutputStreamWriter (new FileOutputStream ("output/output.out")));
			
			for (int i = 0; i < numOfPairs.size (); i++) {
				bufferedWriter.write ("Case #" + (i + 1) + ": " + numOfPairs.get (i) + "\n");
			}
			
			bufferedWriter.close ();
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
}
