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 C;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;

public class Main {
    public static void main(String[] args) throws FileNotFoundException{
        Scanner in = new Scanner(new File("c:\\c.in"));
        PrintWriter out = new PrintWriter(new File("c:\\c.out"));
        int t = in.nextInt();
        for (int j = 1; j <= t; j++) {
            int a = in.nextInt();
            int b = in.nextInt();
            Set<String> s = new HashSet<>();
            for (int i = a; i <= b; i++) {
                String n = i + "";
                int len = n.length();
  
                for (int k = 1; k < len; k++) {
                    String n2 = n.substring(k) + n.substring(0,k);
                    int nn = Integer.parseInt(n2);
                    if (n2.charAt(0)!='0' && nn > i && nn <= b && nn >= a) {
                        s.add(n+nn);
                    }
                }
                
            }
            
            out.println("Case #"+j+": "+s.size());
        }
        
        out.flush();
        out.close();
        in.close();
    }
}
