/*
 * 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.io.FileInputStream;
import java.util.*;

public class Q_C {

    public static void main(String[] args) throws Exception {

        Scanner sc = new Scanner(new FileInputStream("C:\\C-small-attempt0.in"));
        Set<String> set = new HashSet<String>();
        int tests = sc.nextInt();

        for (int i = 0; i < tests; i++) {

            int a = sc.nextInt();
            int b = sc.nextInt();

            for (int j = a; j < b; j++) {
                List<Integer> list = getRecycledNumbers(j);
                for (int k : list) {
                    if (k > j && k <= b) {
                        set.add(j + " " + k);
                    }
                }
            }

            System.out.println("Case #" + (i+1) + ": " + set.size());
            set.clear();

        }

    }

    private static List<Integer> getRecycledNumbers(int num) {
        List<Integer> list = new ArrayList<Integer>();
        String s = String.valueOf(num);
        for (int i = s.length() - 1; i > 0; i--) {
            String temp = s.substring(i, s.length()) + s.substring(0, i);
            if (!temp.startsWith("0")) {
                int cur = Integer.valueOf(temp);
                list.add(cur);
            }
        }
        return list;
    }

}
