import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

class RecycledNumbers{
	
	
	
	int getcount(int small,int large){
		int count = 0;
		for(int currnum = small; currnum < large; currnum++){
			int permut = currnum;
			int no_of_digits = 0;
			while(permut > 0){
				permut = permut/10;
				no_of_digits++;
			}
			int lastDigit = currnum % 10;
			permut = currnum / 10;
			permut = permut + lastDigit * (int)Math.pow(10, no_of_digits-1);
			while(permut != currnum){
				
				if(permut >= currnum && permut <= large){
					
					count++;
				}
				lastDigit = permut % 10;
				permut = permut / 10;
				permut = permut + lastDigit * (int)Math.pow(10, no_of_digits-1);
				
			}
			
		}
		
		return count;
	}
	
	public static void main(String args[]){
		RecycledNumbers d = new RecycledNumbers();
		
		int no_of_cases = 0;
		String input = "";
		
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		try{
			no_of_cases = Integer.parseInt(br.readLine());
		}
		catch(Exception e){
			System.out.println("First line is not a number");
		}
		
		for(int i=1; i <= no_of_cases;i++){
			try{
				input = br.readLine();
			}
			catch(Exception e){
				System.out.println("Number of test cases different from the number mentioned in first line");
			}
			
			System.out.print("Case #" +i+": ");
			
			StringTokenizer t =  new StringTokenizer(input);
			int small=0,large=0;
			if(t.hasMoreTokens()){
				small = Integer.parseInt(t.nextToken());
			}
			if(t.hasMoreTokens()){
				large = Integer.parseInt(t.nextToken());
			}
			System.out.println(d.getcount(small,large));
			
		}
		
		
		

	}
	
	
}
/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package problemc;

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 *
 * @author mayorandrew
 */
public class Main {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        BufferedReader input = null;
        try {
            input = new BufferedReader(new FileReader("input.txt"));
            FileOutputStream output = new FileOutputStream("output.txt");
            
            int N = Integer.parseInt(input.readLine());
            for(int i=0; i<N; i++){
                String[] line = input.readLine().split("\\ ");
                int a = Integer.parseInt(line[0]);
                int b = Integer.parseInt(line[1]);
                
                System.out.println("###" + i+":"+a+" - "+b);
                boolean[] check = new boolean[b-a+1];
                for(int j=0; j<b-a+1; j++){
                    check[j]=true;
                }
                int n = 0;
                for(int k=a; k<=b; k++){
                    String r = Integer.toString(k);
                    int l = r.length();
                    if(check[k-a]){
                        int nn = 0;
                        int[] numbers = new int[l];
                        for(int s=1; s<l; s++){
                            int num = Integer.parseInt(r.substring(l-s, l)+r.substring(0, l-s));
                            if(num>=a && num<=b && num!=k){
                                boolean found = false;
                                for(int j=1; j<l; j++){
                                    if(numbers[j]==num){
                                        found=true;
                                    }
                                }
                                if(!found){
                                    nn++;
                                    numbers[s]=num;
                                    check[num-a]=false;
                                    //System.out.println(k+" - "+num+" v");
                                }
                            }else{
                                numbers[s]=0;
                                //System.out.println(k+" - "+num);
                            }
                        }
                        n+=nn*(nn+1)/2;
                        //System.out.println("#" + "add " + nn);
                    }
                }
                output.write(("Case #"+(i+1)+": "+n+"\n").getBytes());
            }
            
            input.close();
            output.close();
        } catch (IOException ex) {
            Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
        }
    }
}
