/*
 * 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.FileReader;
import java.io.PrintWriter;
import java.io.FileWriter;
import java.util.*;

public class C
{	
	public C( String fn)
	{
		try{
			BufferedReader r = new BufferedReader( new FileReader( fn + ".in"));
			PrintWriter w = new PrintWriter( new FileWriter( fn + ".out"));
			int t = Integer.valueOf( r.readLine());
			for( int i = 0; i < t; i++){
				String[] line = r.readLine().trim().split( " ");
				int y = 0;
				int a = Integer.valueOf( line[0]);
				int b = Integer.valueOf( line[1]);
				
				for( int j = a; j < b; j++){
					for( int k = j+1; k <= b; k++){
					
						String n = String.valueOf( j);	
						String m = String.valueOf( k);
						
						int c = 0;
						while( (c = n.indexOf( m.charAt( 0), c)) != -1){
							if( m.equals( n.substring( c) + n.substring( 0, c))){
								y++;
								break;
							}
							c++;	
						}
					}
				}
				w.println( "Case #" + (i+1) + ": " + y);
				System.out.println( "Case #" + (i+1) + ": " + y);
			}
			w.close();
			r.close();
		}catch( Exception e){}
	}
	
	public static void main( String[] args) throws Exception
	{
		new C( args[0]);
	}
}