import java.util.Scanner;

class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int t=sc.nextInt();
		int casos=1, a, b, n, m, cont;
		while(t!=0){
			a=sc.nextInt();
			b=sc.nextInt();
			if(a>b){
				int aux=a;
				a=b;
				b=aux;
			}
			System.out.printf("Case #%d: ",casos++);
			if(a==b){
				System.out.printf("%d\n",0);
			}else{
				cont=0;
				for(n=a;n<b;n++){					
					for(m=n+1;m<=b;m++){					
						if(isRecycled(n,m)) cont++;
					}
				}
				System.out.printf("%d\n",cont);
			}
			t--;
		}		
	}
	public static boolean isRecycled(int n1, int n2){
		String s1, s2, aux;
		s1 =  String.valueOf( n1 );
		s2 =  String.valueOf( n2 );		
		boolean r = false;		
		for(int i=0;i<s1.length();i++){
			aux="";
			aux=s1.substring(i,s1.length())+s1.substring(0,i);
//			System.out.println(aux);
			if(aux.equals(s2)){
				r=true;
				break;
			}
		}		
		return r;
	}
}

package qualification;

import java.util.ArrayList;

import utils.IOHelper;
import utils.Pair;

public class RecycledNumbers
{
	public static void main(String[] args)
	{
		try
		{
			String[] input = IOHelper.readFile(args[0]);
			int[] results = new int[input.length];

			for (int line = 0; line < input.length; line++)
			{
				String curLine = input[line];
				String[] token = curLine.split(" ");

				int a = Integer.parseInt(token[0]);
				int b = Integer.parseInt(token[1]);
				ArrayList<Pair<Integer, Integer>> recycledNumbers = new ArrayList<Pair<Integer, Integer>>();

				for (int i = a; i < b; i++)
				{
					String number = Integer.toString(i);
					for (int j = 1; j < number.length(); j++)
					{
						String candidate = number.substring(j) + number.substring(0, j);
						int candidateAsNumber = Integer.parseInt(candidate);

						if (candidateAsNumber > i && candidateAsNumber <= b)
						{
							Integer recycledNumber = new Integer(candidateAsNumber);
							if (!recycledNumbers.contains(recycledNumber))
							{
								recycledNumbers.add(new Pair(i, recycledNumber));
							}
						}
					}
				}

				for (Pair<Integer, Integer> pair : recycledNumbers)
				{
					System.err.println(a + " <= " + pair.a + " < " + pair.b + " <= " + b);
				}

				results[line] = recycledNumbers.size();
			}

			IOHelper.writeFile(args[0].replace(".in", ".out"), results);
		}
		catch (IndexOutOfBoundsException e)
		{

		}
	}
}
