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.util.Scanner;


public class Main {

	/**
	 * @param args
	 */
	public static void main(String[] args) {

		Scanner scan = new Scanner(System.in);
		int cases = scan.nextInt();
		scan.nextLine();
		String phrase;
		int i = 1;
		while (scan.hasNextLine()) {
			int n1 = scan.nextInt();
			int n2 = scan.nextInt();
			System.out.println("Case #"+i+++": "+recycle(n1,n2));
		}	
	}

	public static int recycle(int n1, int n2){
		int count = 0;
		for(int i = n1; i<n2; i++){
			for(int j = i+1; j<=n2; j++){
				if(moveComp(i, j))
					count++;
			}
		}
		return count;
	}

	public static boolean moveComp(int n1, int n2){
		String num1 = Integer.toString(n1);
		String num2 = Integer.toString(n2);
		if(num1.length() != num2.length()) return false;
		for(int i = 0; i <num2.length(); i++){
			if(num2.equals(num1))
				return true;
			num2 = num2.charAt(num2.length()-1)+num2.substring(0, num2.length()-1);

		}
		return false;
	}
}
