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 Recyclers {

	private static int countRecycled(int a, int b) {
		int recycled = 0;
		for (int i = a; i <= b; i++) {
			String s = new Integer(i).toString();
			for (int j = 0; j < s.length() - 1; j++) {
				String o = s.substring(s.length() - j - 1, s.length()).concat(
						s.substring(0, s.length() - j - 1));
				int n = Integer.valueOf(s);
				int m = Integer.valueOf(o);
				if (n < m && m <= b) {
					recycled++;
				}
			}
		}
		return recycled;
	}

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int cases = sc.nextInt();
		for (int x = 0; x < cases; x++) {
			sc.nextLine();
			int a = sc.nextInt();
			int b = sc.nextInt();
			int c = countRecycled(a, b);
			System.out.println("Case #" + (x + 1) + ": " + c);
		}
	}
}
