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

import java.util.HashSet;

/**
 *
 * @author vandit
 */
public class RecycleNumbers {

    private HashSet<String> numbers = new HashSet<String>();
    private HashSet<String> initialTempNumbers = new HashSet<String>();
    private HashSet<String> finalTempNumbers = new HashSet<String>();

    HashSet<Pair> numberPairs = new HashSet<Pair>();


    private void findRecycledNumbers(int start, int end, int places) {


        for (int i = start; i <= end; i++) {
            String initialNumber = Integer.toString(i);
            //if (!(numbers.contains(initialNumber) || finalTempNumbers.contains(initialNumber))) {

                StringBuffer tempNumber = new StringBuffer(initialNumber);
                int len = tempNumber.length();
                int startIndexToMove = len - places;
                String tempString = tempNumber.substring(startIndexToMove);
                if ((places == 1 && tempString.equals("0")) || tempString.charAt(0) == '0') {
                    continue;
                }
                tempNumber.delete(startIndexToMove, len);
                String finalTempNumber = tempString + tempNumber.toString();

                if (! (finalTempNumber.equals(initialNumber) || Integer.parseInt(finalTempNumber) > end || Integer.parseInt(finalTempNumber) < Integer.parseInt(initialNumber))) {
                    numbers.add(initialNumber);
                    finalTempNumbers.add(finalTempNumber);
                    Pair pair = new Pair(finalTempNumber,initialNumber);
                    numberPairs.add(pair);
                }
            }

        

    }

    public HashSet<Pair> findAllRecycledNumbers(int start, int end) {
        int length = Integer.toString(start).length();
        for (int i = 1; i < length; i++) {
            findRecycledNumbers(start, end, i);
        }
        return numberPairs;
    }
}

package cj2012.qual;

import java.io.File;
import java.io.PrintWriter;
import java.util.Scanner;
import java.util.TreeSet;

public class C {
	public static void main(String[] args) throws Exception {
		Scanner scan = new Scanner(new File("in/C-small-attempt0.in"));
		int T = scan.nextInt();
		PrintWriter out = new PrintWriter(new File("out/C-small-attempt0.txt"));
		for (int z = 1; z <= T; z++) {
			int A = scan.nextInt();
			int B = scan.nextInt();
			int D = 1 + (int) Math.log10(B);
			int C = (int) Math.pow(10, D - 1);
			int res = 0;
			TreeSet<Integer> set = new TreeSet<Integer>();
			for (int n = A; n <= B; n++) {
				for (int s = 1; s < D; s++) {
					int m = n;
					for (int k = 0; k < s; k++)
						m = (m % 10) * C + (m / 10);
					if (m < A || m > B || n >= m) continue;
					set.add(m);
				}
				res += set.size();
				set.clear();
			}
			out.println("Case #" + z + ": " + res);
		}
		out.close();
	}
}
