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.Iterator;
import java.util.List;

public class Q3M {
	public static void main(String[] args) throws Exception {
		compute();
	}

	private static void compute() throws Exception {
		BufferedReader br = new BufferedReader(new FileReader(new File(
				"C:\\work\\Q3\\C-small-attempt0.in")));
		String line = null;
		int i = Integer.parseInt(br.readLine());
		List l = new ArrayList();
		for (int j = 0; j < i; j++) {
			line = br.readLine();
			String[] nums = line.split(" ");
			l.add(calculate(nums));
		}
		writeOutput(l);
	}

	private static int calculate(String[] nums) {
		int min = Integer.parseInt(nums[0]);
		int max = Integer.parseInt(nums[1]);
		int count = 0;
		List l = new ArrayList();
		for (int i = min; i <= max; i++) {
			for (int times = 1; times < countDigits(i); times++) {
				int res = shiftNum(i, times);
				if (res <= max && i < res) {
					if ((!l.contains((i + ":" + res)))) {
						l.add(i + ":" + res);
						l.add(res + ":" + i);
						count++;
					}
				}
			}
		}
		return count;
	}

	private static boolean checkZeros(int temp, int res) {
		if (temp % 10 == 0 || res % 10 == 0)
			return false;
		return true;
	}

	private static int shiftNum(int n, int times) {
		int base = (int) Math.pow(10, times);
		int temp2 = n / base;
		int placeHolder = (int) Math.pow((double) 10,
				(double) countDigits(temp2));
		int res = placeHolder * (n % base) + temp2;
		if (countDigits(res) == countDigits(n)) {
			return res;
		} else {
			return 2000001;
		}
	}

	public static int countDigits(int x) {
		if (x < 10)
			return 1;
		else {
			return 1 + countDigits(x / 10);
		}
	}

	private static void writeOutput(List l) throws Exception {
		StringBuffer b = new StringBuffer();
		int i = 1;
		BufferedWriter br = new BufferedWriter(new FileWriter(new File(
				"C:\\work\\Q3\\ans.txt")));
		for (Iterator iterator = l.iterator(); iterator.hasNext();) {
			br.write("Case #" + i++ + ": " + iterator.next());
			br.newLine();
		}
		br.close();
	}

}
package Utils;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

public class FileHelper {

	private String path;
	private int totalSize;
	private List<String> inputList;
	private List<String> outputList;
	
	public FileHelper(String path) {
		this.path = path;
		this.inputList = readFile(path);
		this.totalSize = Integer.parseInt(inputList.get(0));
	}
	
	public String getPath() {
		return path;
	}

	public void setPath(String path) {
		this.path = path;
	}

	public int getTotalSize() {
		return totalSize;
	}

	public void setTotalSize(int totalSize) {
		this.totalSize = totalSize;
	}

	public List<String> getInputList() {
		return inputList;
	}

	public void setInputList(List<String> inputList) {
		this.inputList = inputList;
	}

	public List<String> getOutputList() {
		return outputList;
	}

	public void setOutputList(List<String> outputList) {
		this.outputList = outputList;
	}

	public static List<String> readFile(String filepath) {
        List<String> rstList = new ArrayList<String>();

        try {
                FileInputStream fstream = new FileInputStream(filepath);
                // Get the object of DataInputStream
                DataInputStream in = new DataInputStream(fstream);
                BufferedReader br = new BufferedReader(new InputStreamReader(in));

                String strLine;

                // Read File Line By Line
                while ((strLine = br.readLine()) != null) {
                        rstList.add(strLine);
                }

                // Close the input stream
                in.close();
        } catch (Exception e) {// Catch exception if any
                System.err.println("Error: " + e.getMessage());
        }

        return rstList;
	}
	
	 public static void writeFile(String filepath,
             List<String> resList) {
     try {

             FileWriter fstream = new FileWriter(filepath);
             BufferedWriter out = new BufferedWriter(fstream);
             for(int i = 0 ; i< resList.size();++i){
                     out.write(resList.get(i));
                     System.out.println(resList.get(i));
                     if( i != resList.size()  - 1)
                    	 out.newLine();
             }
             // Close the output stream
             out.close();

     } catch (Exception e) {// Catch exception if any
             System.err.println("Error: " + e.getMessage());
     }

}



	public int getInputTotalSize() {

		
		return 0;
	}

	public void init(String[] inputStr) {
		for(int i = 1; i< this.inputList.size(); ++i	){
			inputStr[i - 1] = inputList.get(i);
		}
	}


}
