/*
 * 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.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.util.Scanner;


public class Main {

	/**
	 * @param args
	 */
	
	public static int numShift(int A, int digit){

		int num = 0, div;
		num = A %10;
		div = A /10;
		for(int i=1; i < digit ; i++)
		{
			num = num*10;
		}
		num = num + div;
		return num;
	}
	

	public static int recycleCount(int A, int B)
	{
		int count = 0;
		int num = A;
		String digit = "" + A;
		do
		{
			num = numShift(num, digit.length());
			if(num > A && num <= B)
				count++;
		}while(num != A);
		
		//System.out.print("Count: " + count + "\n");
		return count;
	}
	
	public static void runCase(int A, int B, int casenum)
	{
		int count =0;
		for(int i=A; i<B; i++)
		{
			count += recycleCount(i, B);
		}
		System.out.print("Case #" + casenum + ": " + count + "\n");
	}
	
	public static void main(String[] args) throws FileNotFoundException {
		File ffile = new File(args[0]);
		Scanner scanner;
		scanner = new Scanner(new FileReader(ffile));
		
		int N = scanner.nextInt();
		int A, B;
		for(int i =0; i<N; i++)
		{
			A = scanner.nextInt();
			B = scanner.nextInt();
			runCase(A, B, i+1);
		}
		
	}

}
