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.*;
import java.util.*;

class JamC
{

public static void main(String args[])throws Exception
{

FileReader fr = new FileReader("C-small-attempt0.in"); 
BufferedReader br = new BufferedReader(fr); 

FileWriter fw= new FileWriter("out.txt");

BufferedWriter bw=new BufferedWriter(fw);
PrintWriter pw= new PrintWriter(bw);

int t=Integer.parseInt(br.readLine());int l=0;

String str="",A="",B="",n="",m="";int a=0,b=0,count=0;

for(int i=0;i<t;i++)
{
str=br.readLine();
StringTokenizer st=new StringTokenizer(str);
A=st.nextToken();
B=st.nextToken();
l=A.length();
a=Integer.parseInt(A);
b=Integer.parseInt(B);
count=0;

for(int j=a;j<=b;j++)
{
n=""+j;
for(int k=1;k<l;k++)
{
if(n.charAt(k)=='0')
{}
else if(n.charAt(k)>B.charAt(0))
{}
else if(n.charAt(k)<n.charAt(0))
{}
else if(n.charAt(k)==B.charAt(0)&&(Integer.parseInt(n.substring(k)+n.substring(0,k))>b))
{}
else if(n.charAt(k)==n.charAt(0)&&(Integer.parseInt(n.substring(k)+n.substring(0,k))<=j))
{}
else if(n.equals(n.substring(k)+n.substring(0,k)))
{}
else
count++;
}
}

pw.println("Case #"+(i+1)+": "+count);
}

pw.close();
bw.close();
fw.close();
}
}



