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();
	}

}
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;


public class RecycledNumber {

	/**
	 * @param args
	 * @throws IOException 
	 */

	
	public static void main(String[] args) throws IOException {
		// TODO Auto-generated method stub
		BufferedReader in = new BufferedReader(new FileReader("./test3.txt"));
		FileWriter fstream = new FileWriter("./out3.txt");
		BufferedWriter out = new BufferedWriter(fstream);
		
		String str,str2;
		
		int i = 0;
		int numTestCase = Integer.parseInt(in.readLine());
		
		while ((str = in.readLine()) != null) {
			str2="";
			int numOK = 0;
			String[] toks;
			toks = str.split(" ");
			int LB = Integer.parseInt(toks[0]);
			int UB = Integer.parseInt(toks[1]);
			int numDigit = toks[0].length();
			int []prev = new int[numDigit-1];
			if(numDigit >1){
				for(int k = LB; k < UB;k++)
				{
					for(int j = 1; j< numDigit; j++)
					{				
						String temp = Integer.toString(k);
						String temp1 = temp.substring(0,j);
						String temp2 = temp.substring(j,numDigit);
						String result = temp2+temp1;
						int res = Integer.parseInt(result);
						
						if(res > k && res <= UB)
						{
							numOK++;
							for(int l = 0;l<j;l++)
							{
								if(res == prev[l]) numOK--;
							}	
						}
						prev[j-1] = res;
					}
				}
			}
			str2 = "Case #" + (++i) + ": " + numOK + "\n";
			out.append(str2);
			System.out.print(str2);
		}
		in.close();
		out.close();
	}

}
