import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.StringTokenizer;

public class ReadFile {
	public static void main(String[] args) throws Exception {
		String srcFile = "C:" + File.separator + "Documents and Settings"
				+ File.separator + "rohit" + File.separator + "My Documents"
				+ File.separator + "Downloads" + File.separator
				+ "C-small-attempt1.in.txt";
		String destFile = "C:" + File.separator + "Documents and Settings"
				+ File.separator + "rohit" + File.separator + "My Documents"
				+ File.separator + "Downloads" + File.separator
				+ "C-small-attempt0.out";
		File file = new File(srcFile);
		List<String> readData = new ArrayList<String>();
		FileReader fileInputStream = new FileReader(file);
		BufferedReader bufferedReader = new BufferedReader(fileInputStream);
		StringBuilder stringBuilder = new StringBuilder();
		String line = null;
		while ((line = bufferedReader.readLine()) != null) {
			readData.add(line);
		}
		stringBuilder.append(generateOutput(readData));
		File writeFile = new File(destFile);
		if (!writeFile.exists()) {
			writeFile.createNewFile();
		}
		FileWriter fileWriter = new FileWriter(writeFile);
		BufferedWriter bufferedWriter = new BufferedWriter(fileWriter);
		bufferedWriter.write(stringBuilder.toString());
		bufferedWriter.close();
		System.out.println("output" + stringBuilder);
	}

	/**
	 * @param number
	 * @return
	 */
	private static String generateOutput(List<String> number) {
		StringBuilder stringBuilder = new StringBuilder();
		for (int i = 0; i < number.size(); i++) {
			if (i == 0) {
				continue;
			} else {
				String tempString = number.get(i);
				String[] temArr = tempString.split(" ");
				stringBuilder.append("Case #" + i + ": ");
				stringBuilder.append(getRecNumbers(temArr[0], temArr[1]));
				stringBuilder.append("\n");
			}
		}
		if (stringBuilder.length() > 0) {
			stringBuilder.deleteCharAt(stringBuilder.length() - 1);
		}
		return stringBuilder.toString();
	}

	// /* This method accepts method for google code jam */
	// private static String method(String value) {
	// int intValue = Integer.valueOf(value);
	// double givenExpr = 3 + Math.sqrt(5);
	// double num = Math.pow(givenExpr, intValue);
	// String valArr[] = (num + "").split("\\.");
	// int finalVal = Integer.valueOf(valArr[0]) % 1000;
	//
	// return String.format("%1$03d", finalVal);
	//
	// }
	//
	// /* This method accepts method for google code jam */
	// private static String method2(String value) {
	// StringTokenizer st = new StringTokenizer(value, " ");
	// String test[] = value.split(" ");
	// StringBuffer str = new StringBuffer();
	//
	// for (int i = 0; i < test.length; i++) {
	// // test[i]=test[test.length-i-1];
	// str.append(test[test.length - i - 1]);
	// str.append(" ");
	// }
	// str.deleteCharAt(str.length() - 1);
	// String strReversedLine = "";
	//
	// while (st.hasMoreTokens()) {
	// strReversedLine = st.nextToken() + " " + strReversedLine;
	// }
	//
	// return str.toString();
	// }

	private static int getRecNumbers(String no1, String no2) {

		int a = Integer.valueOf(no1);
		int b = Integer.valueOf(no2);
		Set<String> dupC = new HashSet<String>();
		for (int i = a; i <= b; i++) {
			int n = i;
			List<String> value = findPerm(n);
			for (String val : value) {
				if (Integer.valueOf(val) <= b && Integer.valueOf(val) >= a
						&& n < Integer.valueOf(val)) {
					dupC.add(n + "-" + val);
				}
			}
		}
		return dupC.size();
	}

	private static List<String> findPerm(int num) {
		String numString = String.valueOf(num);
		List<String> value = new ArrayList<String>();
		for (int i = 0; i < numString.length(); i++) {
			String temp = charIns(numString, i);
			if (!temp.equalsIgnoreCase(numString)) {
				value.add(charIns(numString, i));
			}
		}
		return value;

	}

	public static String charIns(String str, int j) {
		String begin = str.substring(0, j);
		String end = str.substring(j);
		return end + begin;
	}
}
/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

/**
 *
 * @author Madu
 */
import java.io.*;

public class Ex3 {

    public static void main(String[] args) {

        try {

            FileInputStream fstream = new FileInputStream("C:/Users/Madu/Documents/NetBeansProjects/CodeJamR1Ex1/input/A-small-attempt0.in");
            FileOutputStream fout = new FileOutputStream("C:/Users/Madu/Documents/NetBeansProjects/CodeJamR1Ex1/output/out.txt");
            PrintStream printStream = new PrintStream(fout);
            // Get the object of DataInputStream
            DataInputStream in = new DataInputStream(fstream);
            BufferedReader br = new BufferedReader(new InputStreamReader(in));
            String inputIlne;
            br.readLine();
            //printStream.println ("Output");
            //Read File Line By Line
            int lineNum = 1;
            while ((inputIlne = br.readLine()) != null) {
                // Print the content on the console

                //##########

                String[] AandB = inputIlne.split(" ");
                int A = Integer.parseInt(AandB[0]);
                int B = Integer.parseInt(AandB[1]);
                int ans = 0;

                int num = A;
                System.out.println(B);
                while (num <= B) {


                    if (num < 10) {                       
                        num++;
                        
                    } else if (num < 100) {
                        
                        int xo = num/10;
                        int recycle1 = (num % 10) * 10 + xo;
                        if (A <= num && num < recycle1 && recycle1 <= B) {
                            ans++;
                        }
                        num++;
                        
                    } else if (num < 1000) {


                        int xoo = num / 100;
                        int recycle1 = (num % 100) * 10 + xoo;
                        if (A <= num && num < recycle1 && recycle1 <= B) {
                            ans++;
                        }

                        int xxo = num / 10;
                        int recycle2 = (num % 10) * 100 + xxo;
                        if (A <= num && num < recycle2 && recycle2 <= B) {
                            ans++;
                        }

                        num++;

                    }

                } //System.out.println(ans);
                    printStream.print("Case #" + lineNum + ": " + ans);
                    lineNum++;
                    printStream.println("");
                
            }


        } catch (Exception e) {
            System.out.println(e.toString());
        }



//        else if(test.length()==4){
//        
//            ans=0;
//            A = Integer.parseInt(test);
//            
//            int num =A;
//            while(num<=B){
//                
//             if(num==1212){num++;continue;}   
//             
//            int xooo = num/1000;    
//            int recycle3 = (num%1000)*10+xooo;
//            if(A<=num&&num<recycle3&&recycle3<=B){
//                ans++;
//            }   
//            
//            int xxoo = num/100;
//            int recycle1 = (num%100)*100+xxoo;
//            if(A<=num&&num<recycle1&&recycle1<=B){
//                ans++;
//            }
//            
//            int xxxo = num/10;
//            int recycle2 = (num%10)*1000+xxxo;
//            if(A<=num&&num<recycle2&&recycle2<=B){
//                ans++;
//            }            
//            
//            num++;
//            
//            }        
//            
//            System.out.println(ans);
//        
//        }

    }
}
