/*
 * 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.BufferedReader;
import java.io.IOException;
import java.io.StringReader;
import java.util.HashSet;
import java.util.Set;


public class Recycled {

	public static void main(String [] args) throws NumberFormatException, IOException
	{
		BufferedReader in = new BufferedReader(new StringReader(args[0]));
		int rows = Integer.parseInt(in.readLine());
		for ( int i = 1; i <= rows; i++)
		{			
			String line = in.readLine();
			String [] tokens = line.split(" ");
			int low = Integer.parseInt(tokens[0]);
			int high = Integer.parseInt(tokens[1]);
			
			int count = 0;
			Set<String> used = new HashSet<String>();
			for ( int j = low; j <= high; j++ )
			{
				String str = Integer.toString(j);
				//System.out.println("Original: " + str);
				for ( int k = 0; k < str.length()-1; k++ )
				{
					String newStr = str.substring(k+1) + str.substring(0,k+1);
					int newInt = Integer.parseInt(newStr); 
					if ( Integer.toString(j).length() == Integer.toString(newInt).length() &&
							
							newInt<=high && 
							!used.contains(j+","+newInt)
							&& !used.contains(newInt+","+j) 
							&& j < newInt )
					{
						count++;
						used.add(j+","+newInt);
					}
				}
			}
			System.out.println("Case #"+i+": " + count);
			//System.out.println(used);
			
			
		}
	}
	
}
