/*
 * 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.BufferedInputStream;
import java.io.DataInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
public class code_jam {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		
		File file = new File("C:\\test.in");
	    FileInputStream fis = null;
	    BufferedInputStream bis = null;
	    DataInputStream dis = null;
	    
	    try {
		    fis = new FileInputStream(file);
		    bis = new BufferedInputStream(fis);
		    dis = new DataInputStream(bis);
		    
		    int cc = Integer.parseInt(dis.readLine());
		    int i;
		    for (i=0;i<cc;i++) {
		    	String range = dis.readLine();
		    	int from = Integer.parseInt(range.substring(0, range.indexOf(' ')));
		    	int to = Integer.parseInt(range.substring(range.indexOf(' ')+1, range.length()));
		    	int count = 0;
		    	int x,y;
		    	for (x=from; x < to; x++){		    		
		    		int length = String.valueOf(x).length();
		    		for (y = 0; y < length-1; y++){
		    			int head = (int) (x / Math.pow(10, y+1));
		    			int tail = (int) (x % Math.pow(10, y+1));
		    			int new_num = (int) (tail * Math.pow(10, length-y-1) + head);
		    			if ((new_num <= to) && (new_num > x))
		    				count++;
		    		}
		    	}
		    	System.out.println("Case #" + (i+1) + ": " + count);
		    }
	      fis.close();
	      bis.close();
	      dis.close();

	    } catch (FileNotFoundException e) {
	      e.printStackTrace();
	    } catch (IOException e) {
	      e.printStackTrace();
	    }
		
		
	}

}
