/*
 * 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;
    }
}

import java.util.Scanner;
import java.io.*;

public class Displayer
{
    public static void main(String[] args) throws IOException
    {
        Scanner kb = new Scanner(new File("/Users/mbp13/Documents/Google Code Jam/GCJ_Q3/src/input"));
        PrintStream out = new PrintStream(new File("/Users/mbp13/Documents/Google Code Jam/GCJ_Q3/src/output_q3"));
        int testNum,A,B;
        String tmpStr,tmpStr2,cut1,cut2;
        int cnt,x;
        testNum = kb.nextInt();
        for(int i=0;i<testNum;i++)
        {
            A = kb.nextInt();
            B = kb.nextInt();
            cnt = 0;
            for(int j=A;j<=B;j++)
            {
                tmpStr = j+"";
                for(int k=1;k<tmpStr.length();k++)
                {
                    cut1 = tmpStr.substring(0,k);
                    cut2 = tmpStr.substring(k,tmpStr.length());
                    tmpStr2 = cut2 + cut1;
                    x = Integer.parseInt(tmpStr2);
                    if(x > j && x >= A && x <= B)
                    {
                        cnt++;
                        System.out.println(j + " " + tmpStr2);
                    }
                }
            }
            out.println("Case #"+(i+1)+": "+cnt);
        }
    }
}
