import java.util.Scanner;
import java.io.*;
import java.lang.Math;


public class C{
	public static int recycle(String str){
		String[] numbers = str.split(" ");
		int min = Integer.parseInt(numbers[0]);
		int max = Integer.parseInt(numbers[1]);
		int ret = 0;

		for(int i = min; i < max; i++){
			String num = i + "";
			int len = num.length();
			int k = i;
			for(int j = 1; j < len; j++){
				k = (k/10) + (int)java.lang.Math.pow(10.0,(double)(len-1))*(k%10);
				if (k > i && k <= max)
					ret++;
				else if(k == i)
					break;
			}
		}

		return ret;
	}

	public static void main(String[] args){
		Scanner sc = null;
		String next;
		int out;
		try{
			sc = new Scanner(new File("C-large.in"));
			int cases = Integer.parseInt(sc.nextLine());
			int current = 0;
			

			FileWriter fs = new FileWriter("output.txt");
			BufferedWriter buff = new BufferedWriter(fs);
			while(current < cases){
				next = sc.nextLine();
				current++;
				out = recycle(next);
				buff.write("Case #" + current + ": " + out + "\n");
			}
			buff.close();
		}
		catch(Exception ex){}
	}
}
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);
	}
}
