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 codejam;

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


public final class ReadWriteTextFile {


  
  /** Constructor. */
  ReadWriteTextFile(){
        try {
                out =new BufferedWriter(new FileWriter("output.in"));
            
                
              scanner = new Scanner(new FileInputStream("input.in"));
              

        } catch (FileNotFoundException ex) {
                  }catch (IOException ex) {
                
            }
  
      
  }
  
  /** Write fixed content to the given file. */
  void writeNextLine(int text)   {
        try {
            out.write("Case #"+lineNumber +": "+text+"\r\n");
  
            System.out.println("Case #"+lineNumber +": "+text);
            
        } catch (IOException ex) {
            
                 }
    
   lineNumber++;
  }
  
   String readLine()  {
    
       
       String output = scanner.nextLine();
      
    return output;
    
  }
   int readIntLine(){
    
    String output = scanner.nextLine();  
       return Integer.decode(output).intValue();
   }
   int readInt(){
    
       return scanner.nextInt();
   }
   
   public void close()
   {
        try {
            out.close();
        } catch (IOException ex) {
              }
   scanner.close();
   }
  // PRIVATE 
  private int lineNumber = 1;
  private BufferedWriter out = null;
  private Scanner scanner = null;
  
}