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 com.nbarraille.gcj;
import java.io.IOException;


public class GCJ extends GCJHelper {
	protected static final String TEST_CASE = "C-large"; // CHANGE THIS WHEN CHANGING PROBLEM
	protected static final boolean RUN_ALL_CASES = true;
	protected static final boolean DEBUG = true;
	
	// DO WHATEVER TO SOLVE THE CASE
	// AND APPEND THE OUTPUT TO SB
	protected static void solveCase() throws IOException {
		long[] inp = readLongArray();
		int a = (int) inp[0];
		int b = (int) inp[1];
		int nbDigits = String.valueOf(a).length();
		int nbOk = 0;
		for (int i = a; i <= b; i++) {
			int i2 = i;
			for (int j = 1; j < nbDigits; j++) {
				i2 = shift(i2, nbDigits);
				if (i2 >= a && i2 <= b && i < i2) {
					nbOk++;
				}
			}
		}
		sb.append(nbOk);
	}
	
	
	private static int shift(int i, int nbDigits) {
		String s = String.valueOf(i);
		while (s.length() < nbDigits) {
			s = "0" + s;
		}
		return Integer.valueOf(s.charAt(s.length() - 1) + s.substring(0, s.length() - 1));
	}

	
	
	
	// DONT TOUCH THIS
	public static void main(String[] args) throws Exception {
		run();
	}
}
