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.util.ArrayList;


public class Run3 {
	public ArrayList<String> read(String name){
		ArrayList<String> data=new ArrayList<String>();

        try{
           BufferedReader br = new BufferedReader(new FileReader("C://codejam/"+name));

           String line = br.readLine();
          
           while(line != null){
                   data.add(line);
                   line = br.readLine();
           }

           br.close();

          
        }catch(Exception e){}
        return data;
	}
	
	public void write(ArrayList<String> data,String name){
		try{
	           BufferedWriter bw = new BufferedWriter(new FileWriter("C://codejam/"+name));
	           
	           for(int i = 0; i < data.size(); i++){
	               bw.write(data.get(i));
	               bw.newLine();
	           }

	           bw.close();
		}catch(Exception e){}

	}
	
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		Run3 x= new Run3();
		ArrayList<String >data =new ArrayList<String>();
		ArrayList<String >out =new ArrayList<String>();
		data=x.read("input3.txt");
		for(int i=1;i<=Integer.parseInt(data.get(0));i++){
			String res=x.solve(data.get(i));
			System.out.println(res);
			out.add("Case #"+i+": "+res);
		}
		x.write(out, "output3.txt");
	}

	private String solve(String string) {
		String result="";
		int results=0;
		String[]x=string.split(" ");
		int a=Integer.parseInt(x[0]);
		int b=Integer.parseInt(x[1]);
		for(int i=a;i<b;i++){
			for(int j=i+1;j<=b;j++){
				String temp=""+i;
				for(int k=0;k<temp.length()-1;k++){
					temp+=temp.charAt(0);
					temp=temp.substring(1, temp.length());
					int num=Integer.parseInt(temp);
					if(num==j){
						if((""+num).length()==(""+j).length())
							results++;
					}
				}
				
				
				
			}
			
			
			
		}
		
		
		
		result+=results;
		return result;
	}

}
