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 ejera;

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

public class Main {

    public static void main(String[] args) throws IOException{
        String Lista1="abcdefghijklmnopqrstuvwxyz";
        String Lista2="yhesocvxduiglbkrztnwjpfmaq";
        char[] SourceList=Lista1.toCharArray();
        Arrays.sort(SourceList);
        
        File f = new File( "e:/Input/C-small-attempt0.in" );
        BufferedReader entrada;
        entrada = new BufferedReader( new FileReader( f ) );
        int T = Integer.parseInt(entrada.readLine());

        for(int i=0;i<T;i++){
            String[] Datos=entrada.readLine().split(" ");
            int A=Integer.parseInt(Datos[0]);
            int B=Integer.parseInt(Datos[1]);
            int contador=0;

            Set listan=new HashSet();

            for(int n=A;n<=B;n++){
                int lenn=String.valueOf(n).length();
                for(int m=n+1;m<=B;m++){
                    if(lenn!=String.valueOf(m).length()) break;
                    
                    String Cadn=String.valueOf(n);
                    String Cadm=String.valueOf(m);

                    if(Cadn.length()!=Cadm.length()) continue;

                    for(int r=0;r<Cadn.length();r++){
                        String CadRes=Cadn.substring(r)+Cadn.substring(0,r);
                        if(Integer.parseInt(CadRes)==Integer.parseInt(Cadm)){
                            listan.add(Cadn+"/"+Cadm);
                            contador++;
                        }
                    }
                }
            }
            System.out.println("Case #"+(i+1)+": "+listan.size());
        }
    }

}
