package qual;

import java.util.Scanner;

public class RecycledNumbers {

	public static void main(String[] args) {
		new RecycledNumbers().run();

	}

	private void run() {
		Scanner sc = new Scanner(System.in);
		int T = sc.nextInt();
		for (int t = 0; t < T; t++) {
			int A = sc.nextInt();
			int B = sc.nextInt();
			int result = solve(A, B);
			System.out.printf("Case #%d: %d\n", t + 1, result);
		}
	}

	public int solve(int A, int B) {
		int result = 0;
		for (int i = A; i <= B; i++) {
			int dig = (int) Math.log10(A/*same as B*/) + 1;
			int aa = i;
			for (int d = 0; d < dig - 1; d++) {
				aa = (aa % 10) * (int)Math.pow(10, dig - 1) + (aa / 10);
				if (i == aa) {
					break;
				}
				if (i < aa && aa <= B) {
//					System.out.printf("(%d, %d) ", i, aa);
					result++;
				}
			}
		}
		return result;
	}

}

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;
  }
}

