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 main;

import java.util.Vector;
import java.io.*;

public class RecycledNumbers {
	
	static int numberOfElementForEachTest = 2;
	static int numberOfLinesPerTest = 0;
	
	public static void main(String[] args) {
		Vector<Integer> elements = new Vector<Integer>();
		numberOfElementForEachTest = 0;
		
		Reader.setFile("input.txt");
		Writer.setFile("output.txt");
		
		String s = Reader.readLine();
		int numberTest = Integer.parseInt(s);
		
		for (int i=0; i<numberTest; i++) {
			numberOfElementForEachTest = 0;
			elements = new Vector<Integer>();
			
			s = Reader.readLine();
			String s1 = s.substring(0, s.indexOf(" "));
			s=s.substring(s.indexOf(" ")+1);
			
			int numberOfDigits = s1.length();
			int[] digits = new int[numberOfDigits];
			int firstNumber = Integer.parseInt(s1);
			int secondNumber = Integer.parseInt(s);
			
			int result = 0;
			switch (numberOfDigits)
			{
			case 1:
				break;
			case 2:
				for (int n1=firstNumber; n1<secondNumber; n1++)
				{
					int n2 = n1/10 + n1%10*10;
					if (n2>n1 && n2<=secondNumber) result++;
				}
				break;
			case 3:
				for (int n1=firstNumber; n1<secondNumber; n1++)
				{
					int n2 = n1/100 + n1%100*10;
					if (n2>n1 && n2<=secondNumber) result++;
					
					n2 = n1/10 + n1%10*100;
					if (n2>n1 && n2<=secondNumber) result++;
				}
				break;
			case 4:
//				System.out.println(System.currentTimeMillis());
				for (int n1=firstNumber; n1<secondNumber; n1++)
				{
					int n2 = n1/1000 + n1%1000*10;
					if (n2>secondNumber) n1 = (n1/1000 + 1) *1000; 
					else if (n2>n1) {
						result++;
					}
				}

				for (int n1=firstNumber; n1<secondNumber; n1++)
				{
					int n2 = n1/100 + n1%100*100;
					if (n2>secondNumber) n1 = (n1/100 + 1) *100; 
					else if (n2>n1) {
						result++;
					}
				}
				
				for (int n1=firstNumber; n1<secondNumber; n1++)
				{
					int n2 = n1/10 + n1%10*1000;
					if (n2>secondNumber) n1 = (n1/10 + 1) *10; 
					else if (n2>n1) {
						result++;
						if (n1/1000 == n1%100/10 && n1%1000/100 == n1%10) result--;
					}
				}
//				System.out.println(System.currentTimeMillis());
				break;
			case 5:
				for (int n1=firstNumber; n1<secondNumber; n1++)
				{
					int n2 = n1/10000 + n1%10000*10;
					if (n2>secondNumber) n1 = (n1/10000 + 1) *10000; 
					else if (n2>n1) {
						result++;
					}
				}
				for (int n1=firstNumber; n1<secondNumber; n1++)
				{
					int n2 = n1/1000 + n1%1000*100;
					if (n2>secondNumber) n1 = (n1/1000 + 1) *1000; 
					else if (n2>n1) {
						result++;
					}
				}

				for (int n1=firstNumber; n1<secondNumber; n1++)
				{
					int n2 = n1/100 + n1%100*1000;
					if (n2>secondNumber) n1 = (n1/100 + 1) *100; 
					else if (n2>n1) {
						result++;
					}
				}
				
				for (int n1=firstNumber; n1<secondNumber; n1++)
				{
					int n2 = n1/10 + n1%10*10000;
					if (n2>secondNumber) n1 = (n1/10 + 1) *10; 
					else if (n2>n1) {
						result++;
					}
				}
				break;
			case 6:
				for (int n1=firstNumber; n1<secondNumber; n1++)
				{
					int n2 = n1/100000 + n1%100000*10;
					if (n2>secondNumber) n1 = (n1/100000 + 1) *100000; 
					else if (n2>n1) {
						result++;
					}
//					if (n2>n1 && n2<=secondNumber) result++;
				}
				for (int n1=firstNumber; n1<secondNumber; n1++)
				{
					int n2 = n1/10000 + n1%10000*100;
					if (n2>secondNumber) n1 = (n1/10000 + 1) *10000; 
					else if (n2>n1) {
						result++;
					}
				}
				for (int n1=firstNumber; n1<secondNumber; n1++)
				{
					int n2 = n1/1000 + n1%1000*1000;
					if (n2>secondNumber) n1 = (n1/1000 + 1) *1000; 
					else if (n2>n1) {
						result++;
						if (n1/100000 == n1%10000/1000 &&
								n1%10000/1000 == n1%100/10 &&
								n1%100000/10000 == n1%1000/100 &&
								n1%1000/100 == n1%10) result-=2;
					}
				}

				for (int n1=firstNumber; n1<secondNumber; n1++)
				{
					int n2 = n1/100 + n1%100*10000;
					if (n2>secondNumber) n1 = (n1/100 + 1) *100; 
					else if (n2>n1) {
						result++;
					}
				}
				
				for (int n1=firstNumber; n1<secondNumber; n1++)
				{
					int n2 = n1/10 + n1%10*100000;
					if (n2>secondNumber) n1 = (n1/10 + 1) *10; 
					else if (n2>n1) {
						result++;
					}
				}
				break;
			case 7:
//				System.out.println(System.currentTimeMillis());
				for (int n1=firstNumber; n1<secondNumber; n1++)
				{
					int n2 = n1/1000000 + n1%1000000*10;
					if (n2>secondNumber) n1 = (n1/1000000 + 1) *1000000; 
					else if (n2>n1) {
						result++;
					}
				}
				for (int n1=firstNumber; n1<secondNumber; n1++)
				{
					int n2 = n1/100000 + n1%100000*100;
					if (n2>secondNumber) n1 = (n1/100000 + 1) *100000; 
					else if (n2>n1) {
						result++;
					}
				}
				for (int n1=firstNumber; n1<secondNumber; n1++)
				{
					int n2 = n1/10000 + n1%10000*1000;
					if (n2>secondNumber) n1 = (n1/10000 + 1) *10000; 
					else if (n2>n1) {
						result++;
					}
				}
				for (int n1=firstNumber; n1<secondNumber; n1++)
				{
					int n2 = n1/1000 + n1%1000*10000;
					if (n2>secondNumber) n1 = (n1/1000 + 1) *1000; 
					else if (n2>n1) {
						result++;
					}
				}
				for (int n1=firstNumber; n1<secondNumber; n1++)
				{
					int n2 = n1/100 + n1%100*100000;
					if (n2>secondNumber) n1 = (n1/100 + 1) *100; 
					else if (n2>n1) {
						result++;
					}
				}
				for (int n1=firstNumber; n1<secondNumber; n1++)
				{
					int n2 = n1/10 + n1%10*1000000;
					if (n2>n1 && n2<secondNumber) {
						result++;
					}
				}
//				System.out.println(System.currentTimeMillis());
				break;
				
			}
			
			
			Writer.writeln("Case #" + (i+1) + ": " + result);
			 
		}
		Writer.close();

	}
	
	public static final class Reader 
	{
		static BufferedReader in;
		
		public static void setFile(String fichier) {
			File file = new File(fichier);
			try {
				in =  new BufferedReader(new FileReader(file));
			} catch (FileNotFoundException e) {
			}
		}

		public static String readLine() {
			String line = null;
			try {
				line =  in.readLine();
			}
			catch (IOException e) {}
			
			return line;
		}
		
		public static String readAll() {
			String text = "";
			String line = "";
			while (line != null) {
				try {
					line = in.readLine();
				} 
				catch (IOException e) {
				}
				if (line != null) text += line + "\n";
			}
			return text;
		}
	}
	
	public static final class Writer 
	{
		static BufferedWriter out;
		
		public static void setFile(String file) {
			try{
				FileWriter fstream = new FileWriter(file);
				out = new BufferedWriter(fstream);
			}
			catch (Exception e){}
		}
		
		public static void write(String ligne) {
			try {
				out.write(ligne);
			}
			catch (Exception e){}
		}
		public static void writeln(String ligne) {
			try {
				out.write(ligne);
				out.write("\n");
			}
			catch (Exception e){}
		}

		public static void close() {
			try {
				out.close();
			}
			catch (Exception e){}
		}
	}
		
}
