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){}
	}
}
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.File;
import java.io.PrintStream;
import java.util.Scanner;
import java.util.Arrays;
import java.util.ArrayList;

public class Numbers{   
  public static ArrayList<Triplet> scores;
  
  public static void main(String arg[]){
    System.out.print("Enter the file path of the input file : ");
    String path = new Scanner(System.in).nextLine();
    String ANS ="", output="";
    int a, b;
    
    try{
      Scanner read = new Scanner(new File(path));
      int testCases =  Integer.parseInt(read.nextLine());
      int cn=0; String tongue; 
      while(cn++<testCases){
          a = read.nextInt();
          b = read.nextInt();
          //read.nextLine();
        
        output = "Case #"+cn+": "+ solve(a,b);//WRITE ANS TO DIFFERENT FILE 
        ANS += output +" \n";
        System.out.println(ANS);
      }
      writeToFile("numbers.out",ANS);
    }
    catch(FileNotFoundException e){//if file is not found
      System.err.println("data file \'"+path+"\' was not found\nPress <enter> to exit...");
      (new Scanner(System.in)).nextLine();
      System.exit(1);
    }
  }
  
  public static void writeToFile(String file, String text){
    PrintStream out = null;
    try {
      out = new PrintStream(new FileOutputStream(file));
      out.print(text);
    }
    catch(Exception e){}
    finally {
      if (out != null) out.close();
    }   
  }
   
  public static int solve(int a, int b){
    int counter=0;
    for(int i=a; i<=b; i++){
      counter += recycle(""+i,b);      
    }
    System.out.println(counter);    
    return counter;
  }
  
  public static int recycle(String numb, int max){
    int numbOfLoops=numb.length()-1, count=0;
    int newNumb, success=0;
    String first="", second=""; int last=-10;
    
    while(count< numb.length()-1){
      second = numb.substring(numbOfLoops-count);
      first = numb.substring(0,numbOfLoops-count);
      newNumb = Integer.parseInt(second+first);      
      
      if(newNumb != last && newNumb > Integer.parseInt(numb) && newNumb <= max){
        last = newNumb;
        success++;
      }
      
      count++;
    }
    return success;
  }
}

