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();
	}

}
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;

/**
 * 
 */

/**
 * @author Bryan
 *
 */
public class problemC {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		String filePath = "/Users/Bryan/Documents/CodeJam/ProblemC/C-small-attempt0.in";
		boolean isFirstLine = true;
		int counter = 1;
		StringBuffer resultString = new StringBuffer();
		
		try {
			// Open the file that is the first
			// command line parameter
			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) {
				if (isFirstLine){
					isFirstLine = false;
					continue;
				}
				
				resultString.append("Case #" + counter + ": ");
				String[] numberList = strLine.split(" ");
				int result = 0;
				int min = Integer.parseInt(numberList[0]);
				int max = Integer.parseInt(numberList[1]);
				for ( int a = min; a <= max; a++){
					result = result + noOfPairs(Integer.toString(a),min, max);
//					System.out.println("final result = " + result);
				}
				System.out.println("result = " + result/2);
				
				resultString.append(result/2);
				resultString.append("\n");
				counter++;
			}
			// Close the input stream
			in.close();
		} catch (Exception e) {// Catch exception if any
			System.err.println("Error: " + e.getMessage());
		}
		
		writeStringToFile(resultString.toString());
		
		


	}
	
	private static int noOfPairs(String num,int min, int max){
		int noOfPairs = 1;
		String oldString = num;

		String newString = "";
		String tempString = oldString;
		ArrayList<String> addedList = new ArrayList<String>();
		for ( int counter = 0; counter < oldString.length(); counter++){
			newString= tempString.substring(tempString.length()-1)+tempString.substring(0,tempString.length()-1);
			tempString=newString;
//			System.out.println(newString);
			
			if( !newString.startsWith("0") && Integer.parseInt(newString) <= max
					&&  Integer.parseInt(newString) >= min
					&&  !newString.equalsIgnoreCase(num)
					&& !addedList.contains(newString)){
				addedList.add(newString);
				noOfPairs++;
			}
		}
		if ( noOfPairs == 1 ){
			return 0;
		}
		return noOfPairs - 1;
//		return nCr(noOfPairs,2);
	}
	
	private static void writeStringToFile(String outputString) {
		try {
			// Create file
			FileWriter fstream = new FileWriter("/Users/Bryan/Documents/CodeJam/ProblemC/output.txt");
			BufferedWriter out = new BufferedWriter(fstream);
			out.write(outputString);
			// Close the output stream
			out.close();
		} catch (Exception e) {// Catch exception if any
			System.err.println("Error: " + e.getMessage());
		}
	}

}
