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 fixjava;

import java.util.ArrayList;

/**
 * String splitter, this fixes the problem that String.split() has of losing the last token if it's empty. It also uses
 * CharSequences rather than allocating new String objects.
 */
public class Split {

	/**
	 * String splitter, this fixes the problem that String.split() has of losing the last token if it's empty. It also uses
	 * CharSequences rather than allocating new String objects.
	 */
	public static ArrayList<CharSequence> splitAsList(String str, String sep) {
		int strLen = str.length();
		int sepLen = sep.length();
		assert sepLen > 0;

		ArrayList<CharSequence> parts = new ArrayList<CharSequence>();
		for (int curr = 0; curr <= strLen;) {
			// Look for next token
			int next = str.indexOf(sep, curr);
			// Read to end if none
			if (next < 0)
				next = strLen;
			// Add next token
			parts.add(str.subSequence(curr, next));
			// Move to end of separator, or past end of string if we're at the end
			// (by stopping when curr <= strLen rather than when curr < strLen,
			// we avoid the problem inherent in the Java standard libraries of
			// dropping the last field if it's empty; fortunately
			// str.indexOf(sep, curr) still works when curr == str.length()
			// without throwing an index out of range exception).
			curr = next + sepLen;
		}
		return parts;
	}

	public static CharSequence[] splitAsArray(String str, String sep) {
		ArrayList<CharSequence> list = splitAsList(str, sep);
		CharSequence[] arr = new CharSequence[list.size()];
		list.toArray(arr);
		return arr;
	}

	public static ArrayList<String> splitAsListOfString(String str, String sep) {
		ArrayList<CharSequence> list = splitAsList(str, sep);
		ArrayList<String> listOfString = new ArrayList<String>(list.size());
		for (CharSequence cs : list)
			listOfString.add(cs.toString());
		return listOfString;
	}

	/** For compatibility only, slower because it creates new String objects for each CharSequence */
	public static String[] split(String str, String sep) {
		ArrayList<CharSequence> list = splitAsList(str, sep);
		String[] arr = new String[list.size()];
		for (int i = 0; i < list.size(); i++)
			arr[i] = list.get(i).toString();
		return arr;
	}

	//	public static void main(String[] args) {
	//		System.out.println(splitAsList("", "\t"));
	//		System.out.println(splitAsList("\t", "\t"));
	//		System.out.println(splitAsList("a\t", "\t"));
	//		System.out.println(splitAsList("\ta", "\t"));
	//		System.out.println(splitAsList("\ta\t", "\t"));
	//		System.out.println(splitAsList("a\tb", "\t"));
	//		System.out.println(splitAsList("a\tb\t", "\t"));
	//		System.out.println(splitAsList("\ta\tb", "\t"));
	//		System.out.println(splitAsList("", "SEP"));
	//		System.out.println(splitAsList("SEP", "SEP"));
	//		System.out.println(splitAsList("aSEP", "SEP"));
	//		System.out.println(splitAsList("SEPaSEPb", "SEP"));
	//		System.out.println(splitAsList("aSEPbSEP", "SEP"));
	//	}

}
