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.*;
public class FileRead {
	String fileName;
	FileReader fr;
	BufferedReader br;
	FileRead(String fileName)
	{
		this.fileName=fileName;
		File f=new File("K:\\CodeJam\\Input\\"+fileName);//Create a file object
		
			FileReader fr;
			try {
				fr = new FileReader(f);
				br=new BufferedReader(fr);
			} catch (FileNotFoundException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}    	
	}
	//function to read next line.
	public String readNextLine(){
		String text=null;
		try {
			text=br.readLine();
		} catch (IOException e) {
			e.printStackTrace();
		}
		
		return text;
	}
	public int readNextInt(){
		int n = 0;
		try{
			n=Integer.parseInt(br.readLine().trim());
		}catch(Exception e){
			System.out.println("Invalid integer");
		}
		return n;
	}
	public int [] readNextIntArray(){
		int []n=null;
		try{
			String []numarray=br.readLine().split(" ");
			n=new int[numarray.length];
			for(int i=0;i<numarray.length;i++){
				n[i]=Integer.parseInt(numarray[i].trim());								
			}
		}catch(Exception e){
			System.out.println("Invalid integer");
		}
		
		return n;
	}
	public void close(){
		try {
			//fr.close();
			br.close();			
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}
	
	