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.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;


public class codejamp3 {
	public static char[] map;
	public static void main(String[] args) throws IOException{
		readFile();
	}

	public static String getResult(String input){
		int resultInt = 0;
		Set<Integer> exist = new HashSet<Integer>();
		String[] splitResult = input.split(" ");
		int numberA = Integer.parseInt(splitResult[0]);
		int numberB = Integer.parseInt(splitResult[1]);
		for(int i = numberA; i < numberB; i++){
			int current = i;
			exist.clear();
			int length1 = String.valueOf(current).length();
			int j = 10;
			while(j<=current){
				int remain = current%j;
				int length2 = String.valueOf(j).length(); 
				double b = Math.pow(10, length2-1);
				double a = Math.pow(10,length1);
				int currentResult = (int)(remain*a/b+current/j);
				if(current == 2022){
					System.out.println(remain+":"+(length2-1)+":"+currentResult);
				}
				if(currentResult <= numberB && currentResult > current){
					if(!exist.contains(currentResult)){
						exist.add(currentResult);
						resultInt++;
					}
				}
				j = j*10;
			}
		}
		return ""+resultInt;
	}
	public static void readFile() throws IOException{
			FileWriter fstream = new FileWriter("out.txt");
			BufferedWriter out = new BufferedWriter(fstream);
            FileReader input = new FileReader("in.txt");
            BufferedReader bufRead = new BufferedReader(input);	
            String line = bufRead.readLine();
            String current = getResult(line);
            int i = 1;
            out.write("Case #" + i + ": " + current);
            line = bufRead.readLine();
            while (line != null){
            	i++;
          	  	out.write('\n' + "Case #" + i + ": " + getResult(line));
          	  	line = bufRead.readLine();
            }             
            bufRead.close();
            out.close();
	}
}
