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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 blacky.codejam.qualifications;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;

public class RecycledNumbers {

	private static class Pair {
		
		final public int m;
		
		final public int n;
		
		public Pair(int m, int n) {
			this.m = m;
			this.n = n;
		}
		
		public boolean equals(Object other) {
			return ((Pair)other).m == this.m && ((Pair)other).n == this.n;
		}
		
		public String toString() {
			return String.format("(%d,%d)", this.m, this.n);
		}
		
		public int hashCode() {
			return this.m * 31 + n;
		}
		
	}
	
	public static void main(String args[]) throws Exception {
		BufferedReader reader = new BufferedReader(new FileReader(new File(args[0])));
		int numberOfTestCases = Integer.parseInt(reader.readLine());
		for(int i = 0; i < numberOfTestCases; i++) {
			String numbers[] = reader.readLine().split(" ");
			Set<Pair> pairs = new HashSet<Pair>();
			int a = Integer.parseInt(numbers[0]);
			int b = Integer.parseInt(numbers[1]);
			for(int j = a; j < b; j++) {
				String jAsString = Integer.toString(j);
				int recycledNumbers[] = new int[jAsString.length()];
				recycledNumbers[0] = j;
				for(int k = 1; k < jAsString.length(); k++) {
					int offset = jAsString.length() - k;
					String currentRecNum = jAsString.substring(offset).concat(jAsString.substring(0, offset));
					recycledNumbers[k] = Integer.parseInt(currentRecNum);
				}
				Arrays.sort(recycledNumbers);
				for(int k = 0; k < recycledNumbers.length - 1; k++) {
					if(!(a <= recycledNumbers[k] && recycledNumbers[k] <= b)) continue;
					for(int l = k + 1; l < recycledNumbers.length; l++) {
						if(!(a <= recycledNumbers[l] && recycledNumbers[l] <= b)) continue;
						if(recycledNumbers[l] == recycledNumbers[k]) continue;
						pairs.add(new Pair(recycledNumbers[k], recycledNumbers[l]));
					}
				}
			}
			System.out.println(String.format("Case #%d: %d", i + 1, pairs.size()));
		}
	}
	
}
