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 codejam;

import java.util.HashSet;
import java.util.Scanner;

public class Qual2012C {
	private static int digitCount;
	private static int[] MULTIPLES = { 1, 10, 100, 1000, 10000, 100000, 1000000, 10000000 };

	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);
		int nrOfTestCases = scanner.nextInt();
		for (int caseNr = 1; caseNr <= nrOfTestCases; caseNr++) {
			int a = scanner.nextInt();
			int b = scanner.nextInt();
			digitCount = digitCount(a);
			System.out.println("Case #" + caseNr + ": " + solve(a, b));
		}
	}

	private static int digitCount(int a) {
		if (a == 0)
			return 0;
		return 1 + digitCount(a / 10);
	}

	private static long solve(int min, int max) {
		long total = 0;
		for (int n = min; n < max; n++)
			total += pairsFor(n, max);
		return total;
	}

	private static int pairsFor(int n, int max) {
		if (n >= max)
			return 0;
		HashSet<Integer> set = new HashSet<Integer>();
		for (int i = 1; i < digitCount; i++) {
			int multipleSplit = MULTIPLES[i];
			int tail = n % multipleSplit;
			if (tail < MULTIPLES[i - 1])
				continue;
			int m = tail * MULTIPLES[digitCount - i] + (n / multipleSplit);
			if (n < m && m <= max)
				set.add(m);
		}
		return set.size();
	}
}
