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 java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;


public class RecycledNumbers 
{
public static void main(String[] args) throws IOException {
	FileWriter wr=new FileWriter("Output.txt");
	BufferedWriter buff=new BufferedWriter(wr);
	
	FileReader read=new FileReader("C-small-attempt0.in");
	BufferedReader buffr=new BufferedReader(read);
	
	String str;
	str=buffr.readLine();
	
	int n=Integer.parseInt(str);
	int j=1;
	int a,b;
	int num,lower,upper;
	int total;
	while(j<=n)
	{
		
		str=buffr.readLine();
		Scanner sc=new Scanner(str);
		sc.useDelimiter(" ");
		a=sc.nextInt();
		b=sc.nextInt();
		
		upper=b;
		lower=a;
		total=0;
		while(a<=b)
		{
		
		String first=Integer.toString(a);
	String orig=first;
	String newStr;
	int curr=Integer.parseInt(first);
		if(first.length()!=1)
		{
			
			while(true)
			{
				
				first=first.charAt(first.length()-1)+first.substring(0,first.length()-1);
				if(first.equals(orig))
					break;
				
				if(!first.startsWith("0"))
				{
				num=Integer.parseInt(first);
				if(num<=upper && num>=lower && num>curr)
					++total;	
				}
				
			}
		}
		++a;
		}
		StringBuffer temp = new StringBuffer("Case #"+j+": ");
		temp=temp.append(Integer.toString(total));
		buff.write(temp.toString());
		buff.newLine();
		++j;
	}
	
	buff.close();
}
}
