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 codejam;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;

/**
 * ´ÓÎÄ±¾¶ÁÈ¡ÊäÈë
 * @author Administrator
 *
 */
public class InOutTool extends ArrayList<String> {
	private String inPath ;
	private String outPath;
	public String outText(String path){
		this.outPath = path;
		return outText();
	}
	public String outText(){
		StringBuffer sb = new StringBuffer();
		PrintWriter out = null;
		try {
			out = new PrintWriter(new File(outPath).getAbsoluteFile());
			for(String s:this){
				out.println(s);
				sb.append(s);sb.append("\n");
			}
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally{
			if(null!=out){
				out.close();
			}
		}
		return sb.toString();
	}
	public String readText(String inPath){
		StringBuffer sb = new StringBuffer();
		BufferedReader in = null;
		try {
			in = new BufferedReader(new FileReader(new File(inPath).getAbsoluteFile()));
			String s;
			while((s = in.readLine()) != null){
				s = s.trim();
				add(s);//Ã¿Ò»ÐÐ×÷ÎªArrayListµÄÒ»¸öÔªËØ
				sb.append(s);sb.append("\n");
			}
		}catch (FileNotFoundException e1) {
			// TODO Auto-generated catch block
			e1.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally{
			if(null!=in){
				try {
					in.close();
				} catch (IOException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
			}
		}
		return sb.toString();
	}
	public InOutTool(String inPath,String outPath){
		this.inPath = inPath;this.outPath = outPath;
		readText(inPath);
		if((size()!=0)&&get(0).equals("")) remove(0);
	}
}
