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;
	}
}

import java.io.*;
import java.util.*;

/**
 * @author Chris Dziemborowicz <chris@dziemborowicz.com>
 * @version 2012.0414
 */
public class RecycledNumbers
{
    public static void main(String[] args)
            throws Exception
    {
        // Get input files
        File dir = new File("/Users/Chris/Documents/UniSVN/code-jam/recycled-numbers/data");
        File[] inputFiles = dir.listFiles(new FilenameFilter() {
            @Override
            public boolean accept(File dir, String name)
            {
                return name.endsWith(".in");
            }
        });

        // Process each input file
        for (File inputFile : inputFiles) {
            System.out.printf("Processing \"%s\"...\n", inputFile.getName());

            String outputPath = inputFile.getPath().replaceAll("\\.in$", ".out");
            BufferedWriter writer = new BufferedWriter(new FileWriter(outputPath));

            Scanner scanner = new Scanner(inputFile);
            System.out.printf("Number of test cases: %s\n", scanner.nextLine());

            int count = 0;
            while (scanner.hasNext()) {
                String line = scanner.nextLine();
                String output = String.format("Case #%d: %d\n", ++count, process(line));

                System.out.print(output);
                writer.write(output);
            }

            writer.close();
            System.out.println("Done.\n");
        }

        // Compare to reference files (if any)
        for (File inputFile : inputFiles) {
            System.out.printf("Verifying \"%s\"...\n", inputFile.getName());

            String referencePath = inputFile.getPath().replaceAll("\\.in$", ".ref");
            String outputPath = inputFile.getPath().replaceAll("\\.in$", ".out");

            File referenceFile = new File(referencePath);
            if (referenceFile.exists()) {
                InputStream referenceStream = new FileInputStream(referencePath);
                InputStream outputStream = new FileInputStream(outputPath);

                boolean matched = true;
                int referenceRead, outputRead;
                do {
                    byte[] referenceBuffer = new byte[4096];
                    byte[] outputBuffer = new byte[4096];

                    referenceRead = referenceStream.read(referenceBuffer);
                    outputRead = outputStream.read(outputBuffer);

                    matched = referenceRead == outputRead
                            && Arrays.equals(referenceBuffer, outputBuffer);
                } while (matched && referenceRead != -1);

                if (matched) {
                    System.out.println("Verified.\n");
                } else {
                    System.out.println("*** NOT VERIFIED ***\n");
                }
            } else {
                System.out.println("No reference file found.\n");
            }
        }
    }


    public static int process(String line)
    {
        Scanner scanner = new Scanner(line);
        final int a = scanner.nextInt();
        final int b = scanner.nextInt();
        final int[] pow10 = new int[] { 1, 10, 100, 1000, 10000, 100000, 1000000, 10000000,
                100000000, 1000000000 };

        int count = 0;
        for (int n = a; n < b; n++) {
            Set<Integer> set = new HashSet<Integer>();
            int numDigits = numDigits(n);
            for (int d = 1; d < numDigits; d++) {
                int back = n % pow10[d];
                int front = n / pow10[d];
                int m = front + back * pow10[numDigits - d];
                if (n < m && m <= b && numDigits == numDigits(m)) {
                    set.add(m);
                }
            }
            count += set.size();
        }
        return count;
    }


    public static int numDigits(int n)
    {
        if (n < 0) {
            return numDigits(-n);
        } else if (n < 1) {
            return 0;
        } else if (n < 10) {
            return 1;
        } else if (n < 100) {
            return 2;
        } else if (n < 1000) {
            return 3;
        } else if (n < 10000) {
            return 4;
        } else if (n < 100000) {
            return 5;
        } else if (n < 1000000) {
            return 6;
        } else if (n < 10000000) {
            return 7;
        } else if (n < 100000000) {
            return 8;
        } else if (n < 1000000000) {
            return 9;
        } else {
            return 10;
        }
    }
}