import java.io.*;

class code1
{
	public static void main(String args[]) throws Exception 
	{
		File ii = new File ("C-small-attempt1.in");
		FileInputStream fis = new FileInputStream(ii);
		BufferedReader  br = new BufferedReader(new InputStreamReader (fis));
		int cases = Integer.parseInt(br.readLine());
		FileOutputStream fout = new FileOutputStream ("output.txt");
		DataOutputStream dout = new DataOutputStream (fout);
		int total=0;
		for(int i=0;i<cases;i++){
		String temp = br.readLine();
		String parts [] = temp.split(" ");
		int lower = Integer.parseInt(parts[0]);
		int upper = Integer.parseInt(parts[1]);
		System.out.println(lower+" "+upper);
		
		for(int j=lower;j<=upper;j++)
		{
			int abc = j;int length=0;
			if(j<10)continue;
			while (abc!=0){abc/=10;length++;}
			abc=j;
			for(int m=0;m<length-1;m++){
				int shift = abc%10;
				abc=abc/10;
				System.out.println("hi "+j);
				abc=abc+shift*power(10,length-1);
				if(abc<=upper&&shift!=0&&abc>j)total++;
				System.out.println(total);
			}
		}
 		dout.writeBytes("Case #"+(i+1)+ ": "+total+"\n");
 		total=0;
		}//for close
		
	}

	private static int power(int i, int j) {
		int no=1;
		for(int a=0;a<j;a++){no=10*no;}
		return no;
	}
}
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashSet;


public class RecycledNumbers {

	/**
	 * @param args
	 * @throws IOException 
	 */
	public static void main(String[] args) throws IOException {
		// TODO Auto-generated method stub
		int testCaseNumber;

		String input;
		BufferedReader in = new BufferedReader(new FileReader("C-small-attempt0.in"));
		input = in.readLine();

		testCaseNumber = Integer.parseInt(input.trim());
		int[] totalAccountArray = new int[testCaseNumber];

		for(int i=0; i<testCaseNumber; i++){

			input = in.readLine();

			String[] inputArray = input.split(" ");
			int A = Integer.parseInt(inputArray[0]);
			int B = Integer.parseInt(inputArray[1]);

			int count = 0;

			HashSet<String> hashSet = new HashSet<String>();
			
			
			
			for(int j=A;j<=B; j++){
				
				String num = String.valueOf(j);
				for(int k=1; k<num.length(); k++){
					String firstHalf = num.substring(0, k);
					String lastHalf = num.substring(k,num.length());

					String flipped = lastHalf+firstHalf;
					
					int flippedNum = Integer.parseInt(flipped);
					if(j>=flippedNum)
						continue;
					
					if(flippedNum>=A && flippedNum<=B){
						if(hashSet.contains(num+flippedNum)){
							System.out.println("DUPLICATE!!: " +num+flippedNum);
							continue;
						}
						System.out.println("counted: "+"original: "+num+" Flipped: "+flippedNum);
						count++;
						hashSet.add(num+flippedNum);
					}

				}

			}
			System.out.println(count);
			totalAccountArray[i] = count;
		}
		in.close();

		FileWriter fstream = new FileWriter("C-small-attempt0.out");
		BufferedWriter out = new BufferedWriter(fstream);

		for(int i=1; i<=testCaseNumber;i++){
			String outLine = "Case #"+i+": "+totalAccountArray[i-1]+"\n";
			out.write(outLine);
		}
		out.close();
		System.out.println("File created successfully.");

	}

}

