import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

class RecycledNumbers{
	
	
	
	int getcount(int small,int large){
		int count = 0;
		for(int currnum = small; currnum < large; currnum++){
			int permut = currnum;
			int no_of_digits = 0;
			while(permut > 0){
				permut = permut/10;
				no_of_digits++;
			}
			int lastDigit = currnum % 10;
			permut = currnum / 10;
			permut = permut + lastDigit * (int)Math.pow(10, no_of_digits-1);
			while(permut != currnum){
				
				if(permut >= currnum && permut <= large){
					
					count++;
				}
				lastDigit = permut % 10;
				permut = permut / 10;
				permut = permut + lastDigit * (int)Math.pow(10, no_of_digits-1);
				
			}
			
		}
		
		return count;
	}
	
	public static void main(String args[]){
		RecycledNumbers d = new RecycledNumbers();
		
		int no_of_cases = 0;
		String input = "";
		
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		try{
			no_of_cases = Integer.parseInt(br.readLine());
		}
		catch(Exception e){
			System.out.println("First line is not a number");
		}
		
		for(int i=1; i <= no_of_cases;i++){
			try{
				input = br.readLine();
			}
			catch(Exception e){
				System.out.println("Number of test cases different from the number mentioned in first line");
			}
			
			System.out.print("Case #" +i+": ");
			
			StringTokenizer t =  new StringTokenizer(input);
			int small=0,large=0;
			if(t.hasMoreTokens()){
				small = Integer.parseInt(t.nextToken());
			}
			if(t.hasMoreTokens()){
				large = Integer.parseInt(t.nextToken());
			}
			System.out.println(d.getcount(small,large));
			
		}
		
		
		

	}
	
	
}
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);
		}
	}


}
