/*
 * 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.InputStreamReader;
import java.util.ArrayList;
import java.util.Scanner;


public class Recycle {

	
	public static int Search(String a, String b){
		if(a.length() != b.length())
			return 0;
		else{
			ArrayList<String> chk = new ArrayList<String>();
			int counter=0;
			for(int i=0; i<a.length(); i++){
				if((!chk.contains(a))&& a.equals(b))
					counter++;
				chk.add(a);
				a = a.substring(1)+a.charAt(0);
			}
			return counter;
		}
	}
	
	public static void main(String[] args) {
		Scanner scan = new Scanner(new InputStreamReader(System.in));
		int cases = Integer.parseInt(scan.next());
		int count=1;
		while(cases >0){
			int a = Integer.parseInt(scan.next());
			int b = Integer.parseInt(scan.next());
			int tmp = a;
			int noOfRec=0;
			while(tmp< b){
				for(int b2=b; b2>tmp; b2--){
					int no = Search(""+tmp, ""+b2);
					noOfRec += no;
				}
				tmp++;
			}
			System.out.println("Case #"+count+": "+noOfRec);
			count++;
			cases--;
		}

	}

}
