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;
	}
}

import javax.swing.*;
import java.util.Scanner;
import java.io.*;

class ProblemC
{
	public static void main (String []sdvv) throws IOException
	{
		int cases=0, A=0, B=0, total;
		String num;
		Scanner sc;
		PrintWriter es;
		try
		{
			sc = new Scanner(new File("Csmall.IN"));
			es = new PrintWriter(new BufferedWriter(new FileWriter("solutionC.txt")));
			cases=Integer.parseInt(sc.nextLine());
			for(int j=1;j<=cases;j++)
			{
				total=0;
				es.print("Case #"+j+": ");
				A=sc.nextInt();
				B=sc.nextInt();

				for(int n=A;n<B;n++)
				{
					for(int m=n+1;m<=B;m++)
					{
						if(checkRotation(n,m))
						{
							total++;
						}
					}
				}

				es.println(total);
			}
			es.close();
		}
		catch(FileNotFoundException error)
		{
			System.out.println("no se encuentra el archivo");
		}
		catch (EOFException e)
		{
		    System.out.println("Final de Stream");
		}

	}
	public static boolean checkRotation(int n, int m)
	{
		String num=Integer.toString(n);
		String ref=Integer.toString(m);
		if(num.length()==ref.length())
		{
			int l=num.length();
			String temp=num;
			for(int z=1;z<l;z++)
			{
				temp=temp.substring(1,l);
				temp+=num.charAt(z-1);
				if(temp.equals(ref))
					return true;
			}
		}
		return false;
	}
}