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;
	}
}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
//c prob 
import java.io.*;
import java.util.StringTokenizer;

/**
 *
 * @author abood
 */
public class test {
  static  int count =0,s=0;
    public static void main(String[] args) throws IOException {
        BufferedReader br =new BufferedReader(new FileReader("C-small-attempt0.in"));
   PrintWriter out =new PrintWriter(new BufferedWriter(new FileWriter("C-small-attempt0.out")));
        int loop=Integer.parseInt(br.readLine());
        for (int i = 1; i <=loop; i++) {
            count=0;
            StringTokenizer st=new StringTokenizer(br.readLine());
           int x=Integer.parseInt(st.nextToken());
           int y=Integer.parseInt(st.nextToken());
            for (int j = x; j < y; j++) {
                check(j,y);
            }
      out.println("Case #"+i+": "+count);
        }
        out.close();                                  // close the output file
    System.exit(0);  
    }
    public static void check(int xx,int yy){
        String res="";
        String x=""+xx;
        int l=x.length();
        String t="";
        for (int i = 1; i < l; i++) {
            t=x.substring(i, l)+x.substring(0,i);
            int m=Integer.parseInt(t);
            if(m<=yy&&m>xx){
               // System.out.println(xx+" "+t);
                if(res.contains(t))continue;
                res+=" "+t;
                count++;
                }
            
        }
    }
}
