import java.io.*;
import java.math.BigInteger;
import java.util.*;

import org.jfree.data.function.PowerFunction2D;

public class r2a
{

	Map numMap = new HashMap();
    int output = 0;

    /**
     * @param args
     */
    public static void main(String[] args)
    {
        r2a mk = new r2a();
        try {
            FileInputStream fstream = new FileInputStream("d:/cjinput.txt");
            DataInputStream in = new DataInputStream(fstream);
            BufferedReader br = new BufferedReader(new InputStreamReader(in));
            String str;
            int i = 0;
            while ((str = br.readLine()) != null) {
            	int begin=0,end = 0;
                i++;
                if (i == 1)
                    continue;
                mk.numMap = new HashMap();
                StringTokenizer strTok = new StringTokenizer(str, " ");
                while (strTok.hasMoreTokens()) {
                	begin =  Integer.parseInt(((String) strTok.nextToken()));
                    end = Integer.parseInt(((String) strTok.nextToken()));
                }

                mk.evaluate(i, begin, end);

            }
            in.close();
        }
        catch (Exception e) {
            System.err.println(e);
        }

    }

    private void evaluate(int rowNum, int begin, int end)
    {
    	output=0;
    	for (int i = begin; i<= end; i++) {
    		if(numMap.containsKey(Integer.valueOf(i)))
    			continue;
    		List l = getPairElems(i);
    		if (l.size() > 0) {
    			Iterator itr = l.iterator();
    			int ctr = 0;
    			ArrayList tempList = new ArrayList();
    			while (itr.hasNext()) {
    				int next = ((Integer)itr.next()).intValue();
    				if (next <= end && next > i) {
    					numMap.put(Integer.valueOf(next), i);
    					tempList.add(next);
    					ctr++;
    				}
    			}
    			ctr = getCounter(ctr+1,2);
/*    			if (tempList.size() > 0 || ctr > 0)
    				System.out.println("DD: " + i + ": " + tempList +" ; ctr = " + ctr);*/
    			output = output + ctr;
    		}
    		
    	}

        String outputStr = "Case #" + (rowNum -1) + ": " + output;
        
        System.out.println(outputStr);
    }

	private int getCounter(int n, int r) {
		int ret = 1;
		int nfactorial =1;
		for (int i = 2; i<=n; i++) {
			nfactorial = i*nfactorial;
		}
		int nrfact =1;
		for (int i = 2; i<=n-r; i++) {
			nrfact = i*nrfact;
		}
		
		return nfactorial/(2*nrfact);
	}

	private ArrayList getPairElems(int num) {
		ArrayList retList = new ArrayList();
		int temp = num;
		if (num/10 == 0)
			return retList;
		
		String str = String.valueOf(num);
		
		int arr[] = new int[str.length()];
		int x = str.length();
		while (temp/10 > 0) {
			arr[x-1] = temp%10;
			temp=temp/10;
			x--;
		}
		arr[0]=temp;
		
		int size = arr.length;
		for (int pos = size -1; pos >0; pos--) {
			if(arr[pos] == 0)
				continue;
			int pairNum = 0;
			int multiplier =1;
			for (int c=0; c < size-1; c++) {
				multiplier = multiplier*10;
			}
			pairNum = pairNum + (arr[pos]*multiplier);
			for(int ctr = pos+1, i=1; i < size; i++,ctr++) {
				if (ctr == size)
					ctr=0;
				if (multiplier!=1)
					multiplier=multiplier/10;
				pairNum = pairNum + (arr[ctr]*multiplier);
			}
			if (pairNum != num)
				retList.add(Integer.valueOf(pairNum));			
		}
		
		return retList;
	}
}

/**
 * 
 */
package br.com.softctrl.code.c;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Reader;
import java.io.Writer;

/**
 * @author timoshenko
 * 
 */
public class CRecycledNumbers {

	private static int A = 0;
	private static int B = 0;
	private static int T = 4;
	private static int c = 0;

	private static String fileInput = "/Users/timoshenko/Development/Projects/SoftCtrl.com/eclipse-jboss/workspaces/google-code-jam/GoogleCodeJam2012/src/br/com/softctrl/in/C-large.in";
	private static String fileOutput = "/Users/timoshenko/Development/Projects/SoftCtrl.com/eclipse-jboss/workspaces/google-code-jam/GoogleCodeJam2012/src/br/com/softctrl/out/C-large_out.txt";
	private static SCFileReader scFr = null;
	private static SCFileWriter scFw = null;

	public static boolean valid(int n, int m) {
		// A ² n < m ² B
		// System.out.println(String.format("A(%d)<=n(%d)<m(%d)<=B(%d)", A, n,
		// m,
		// B));
		return (String.valueOf(n).length() == String.valueOf(m).length() ? (A <= n
				&& n < m && m <= B)
				: false);

	}

	public static void main(String[] args) {

		try {
			scFr = new SCFileReader(fileInput);
			scFw = new SCFileWriter(fileOutput);
			if (scFr.ready()) {
				T = Integer.parseInt(scFr.readLine());
				for (int z = 0; z < T; z++) {
					String[] row = scFr.readLine().split(" ");
					A = Integer.parseInt(row[0]);
					B = Integer.parseInt(row[1]);
					scFw.writeLn(String.format("Case #%d: %d", z + 1, count()));
				}
			}
			scFr.close();
			scFw.save();
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}

	}

	public static int count() {
		int count = 0;
		for (int i = A; i <= B; i++) {
			String n = String.valueOf(i);
			for (int length = n.length() - 1; (length >= 1); length--) {
				String m = n.substring(length, n.length())
						+ n.substring(0, length);
				if (valid(Integer.parseInt(n), Integer.parseInt(m))) {
					count++;
				}
			}
		}
		return count;
	}
}

class SCFileReader {
	private Reader reader = null;
	private BufferedReader bufferedReader = null;
	private File file = null;

	public SCFileReader(String fileName) throws FileNotFoundException {
		file = new File(fileName);
		reader = new FileReader(file);
		bufferedReader = new BufferedReader(reader);
	}

	public boolean ready() {
		try {
			return bufferedReader.ready();
		} catch (IOException e) {
			e.printStackTrace();
			return false;
		}
	}

	public String readLine() throws IOException {
		return bufferedReader.readLine();
	}

	public void close() {
		if (this.ready()) {
			try {
				bufferedReader.close();
				reader.close();

			} catch (IOException e) {
				e.printStackTrace();
			}
			bufferedReader = null;
			reader = null;
			file = null;
		}
	}

}

class SCFileWriter {
	private Writer writer = null;
	private BufferedWriter bufferedWriter = null;
	private File file = null;

	public SCFileWriter(String fileName) throws IOException {
		file = new File(fileName);
		if (file.exists()) {
			file.delete();
		}
		writer = new FileWriter(file);
		bufferedWriter = new BufferedWriter(writer);
	}

	public void write(String row) throws IOException {
		// System.out.println(row);
		bufferedWriter.write(row);
	}

	public void writeLn(String row) throws IOException {
		System.out.println(row);
		bufferedWriter.write(row + "\n");
	}

	public void save() {
		try {
			bufferedWriter.close();
			writer.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
		bufferedWriter = null;
		writer = null;
		file = null;

	}

}
