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 common;

import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.InputStreamReader;

public class FileRead 
{
	public static StringBuffer read()
	{
		FileInputStream fstream=null;
		 DataInputStream in=null;
		 BufferedReader br=null;
		 StringBuffer sb=new StringBuffer("");
	  try
	  {
		  fstream = new FileInputStream("D:/tony/code jam/Recycledf Numbfers/C-small-attempt0.in");
		  in = new DataInputStream(fstream);
		  br = new BufferedReader(new InputStreamReader(in));
		  String strLine;
		  while ((strLine = br.readLine()) != null)   
		  {
			  sb=sb.append (strLine+"\n");
		  }
	  }
	  catch (Exception e)
	  {
		  System.err.println("Error: " + e.getMessage());
	  }
	 finally
	 {
		 try
		 {
			 br.close();
			 in.close();
			 fstream.close();
		 }
		 catch (Exception e)
		  {
			  System.err.println("Error: " + e.getMessage());
		  }
	}
	  return sb;
	  
	}
}
