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 gcj2012qr;

import java.io.*;
import java.util.*;
import java.util.concurrent.*;

import com.google.*;

/**
 * @author Roman Kosenko <madkite@gmail.com>
 */
public class RecycledNumbers extends SingleThreadSolution<Object> {
	public static void main(String[] args) throws Exception {
		solve(new SolutionFactory<Object>() {
			public Callable<Object> read(BufferedReader br) throws IOException {
				String[] ss = br.readLine().split(" ");
				assert ss.length == 2;
				return new RecycledNumbers(Integer.parseInt(ss[0]), Integer.parseInt(ss[1]));
			}
		}, "google/src/gcj2012qr/" + "C-large.in");
	}
	private final int a, b;
	public RecycledNumbers(int a, int b) {
		this.a = a;
		this.b = b;
	}
	public String call() throws Exception {
		int result = 0;
		for(int i = a; i < b; i++) {
			int p = 1;
			for(int t = i / 10; t != 0; p *= 10)
				t /= 10;
			for(int t = i;;) {
				t = t / 10 + p * (t % 10);
				if(t == i)
					break;
				if(t > i && t <= b)
					result++;
			}
		}
		return Integer.toString(result);
	}
}
