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 qualification;

import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Scanner;

public class C {

	String solve(Scanner in) throws IOException {
		int A = in.nextInt(), B = in.nextInt(), pow = 1, pairs = 0;
		
		while(10*pow <= A)
			pow *= 10;
		
		boolean[] seen = new boolean[B+1];
		for(int n = A; n <= B; n++)
			if(!seen[n]) {
				int count = 0;
				for(int m = n; m > B || !seen[m]; m = m/10 + m%10 * pow)
					if(A <= m && m <= B) {
						seen[m] = true;
						count++;
					}
				pairs += count * (count-1) / 2;
			}
		
		return ""+pairs;
	}
	
/*************************************************************************************************/
	
	public static void main(String[] args) throws IOException {
		for(File f : new File(".").listFiles())
			if(f.isFile() && f.getName().startsWith(C.class.getSimpleName() + "-")
					      && f.getName().endsWith(".in")) {
				
				Scanner in = new Scanner(new FileReader(f));
				PrintWriter out = new PrintWriter(new FileWriter(f.getName() + ".out"));
				
				int cases = in.nextInt(); in.nextLine();
				for(int caseno = 1; caseno <= cases; caseno++)
					out.printf("Case #%d: %s%n", caseno, new C().solve(in));
				
				out.close();
			}
	}
}
