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 qual1;

import java.io.*;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.StringTokenizer;

public class C {
	public static void main(String[] args) throws IOException {
		// Use BufferedReader rather than RandomAccessFile; it's much faster
		BufferedReader f = new BufferedReader(new FileReader("C-small-attempt0.in"));
		PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter("C-small-attempt0.out")));

		int cases = Integer.parseInt(f.readLine());
		for (int zz = 1; zz <= cases; zz++) {
			StringTokenizer st = new StringTokenizer(f.readLine());
			int a = Integer.parseInt(st.nextToken());
			int b = Integer.parseInt(st.nextToken());
			
			int[] list = new int[b-a+1];
			for (int i=a; i<=b; i++) {
				list[i-a] = i;
			}
			
			HashMap<Integer,ArrayList<Integer>> dump = new HashMap<Integer, ArrayList<Integer>>();
			
			long ans = 0;
			for (int i=a; i<=b; i++)  {
				if (list[i-a]==0)
					continue;
				String x = i+"";
				ArrayList<Integer> xzc = new ArrayList<Integer>();
				for (int j=1; j<x.length(); j++) {
					int t1 = (int) (i%(Math.pow(10,j)));
					int tx = (int) (t1*(Math.pow(10,(x.length()-j))));
					int t2 = (int) (tx + i/(Math.pow(10,j)));
					if (t2==i)
						continue;
					if (t2>=a && t2<=b) {
						if (list[t2-a]==0) {
							continue;
						}
						list[t2-a] = 0;
						xzc.add(t2);
					}
				}
				dump.put(i, xzc);
			}
			
			for (int key : dump.keySet()) {
				ArrayList<Integer> xzc = dump.get(key);
				if (xzc.isEmpty())
					continue;
				//Collections.sort(xzc);
				//System.out.println(key+" : "+xzc);
				if (xzc.size()==1)
					ans++;
				else
					ans+= ((xzc.size()+1)*(xzc.size())/2);
					
			}
			System.out.println("Case #" + zz + ": "+ans);
			
			out.println("Case #" + zz + ": "+ans);
		}

		out.close(); // close the output file
		System.exit(0); // don't omit this!
	}

}