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 * and open the template in the editor.
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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();

    }

}

package code_jam_quali;

import java.util.HashSet;
import java.util.Scanner;

/**
 *
 * @author sansarun
 */
public class Recycled {

    public static void main(String[] args) {        
        Scanner sc = new Scanner(System.in);
        int caseNumber = sc.nextInt();

        for(int currentCase=1; currentCase<=caseNumber; currentCase++) {
            HashSet<NumberPair> recycledPairSet = new HashSet<NumberPair>();
            int a = sc.nextInt();
            int b = sc.nextInt();
            int digit = (""+a).length();

            for(int n=a; n<b; n++) {
                StringBuilder nString = new StringBuilder(""+n);

                for(int j=0; j<digit; j++) {
                    rotate(nString);
                    int m = Integer.valueOf(nString.toString());
                    
                    if(m > n && m <= b) {
                        recycledPairSet.add(new NumberPair(n, m));
                    }
                }
            }           

            System.out.println(String.format("Case #%d: %d", currentCase, recycledPairSet.size()));
        }    

    }

    private static StringBuilder rotate(StringBuilder s) {
        if(s.length() == 0)
            return s;

        s.insert(0, s.charAt(s.length() - 1));
        s.deleteCharAt(s.length() - 1);
        return s;
    }
}

class NumberPair {

    private int a;
    private int b;

    public NumberPair(int a, int b) {
        this.a = a;
        this.b = b;
    }

    @Override
    public boolean equals(Object obj) {
        if (!(obj instanceof NumberPair)) {
            return false;
        }

        NumberPair n = (NumberPair) obj;
        if (n.a == a && n.b == b) {
            return true;
        } else if (n.a == b && n.b == a) {
            return true;
        } else {
            return false;
        }
    }

    @Override
    public int hashCode() {
        return a+b;
    }
}
