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.*;
import java.util.HashSet;
import java.util.Set;

/**
 * Created by IntelliJ IDEA.
 * User: YC14RP1
 * Date: 4/14/12
 * Time: 12:57 AM
 * To change this template use File | Settings | File Templates.
 */
public class Test3 {


    public static void main(String[] args) throws FileNotFoundException {
        String path = "C:\\Users\\YC14rp1\\Downloads\\C-small-attempt0.in";
        try{
            // Open the file that is the first
            // command line parameter
            FileInputStream fstream = new FileInputStream(path);
            // Get the object of DataInputStream
            DataInputStream in = new DataInputStream(fstream);
            BufferedReader br = new BufferedReader(new InputStreamReader(in));
            String strLine;
            //Read File Line By Line
            strLine = br.readLine();
            int n = Integer.valueOf(strLine);
            for (int i=1;i<=n;i++) {
                strLine = br.readLine();
                String[] split = strLine.split(" ");
                String s1 = split[0];
                long d1 = Long.valueOf(s1);
                String s2 = split[1];
                long d2 = Long.valueOf(s2);
                int res = 0;
                for (long j=d1;j<=d2;j++) {
                    Set<Long> cSet = new HashSet<Long>();
                    String ss = String.valueOf(j);
                    for (int k=0;k<s1.length()-1;k++) {
                        String s = ss.substring(k+1)+ss.substring(0,k+1);
                        Long r = Long.valueOf(s);
                        if ((r>j) && (r>=d1) && (r<=d2)) {
                            if (!cSet.contains(r)) {
                                //System.out.println(j+"/"+r);
                                res++;
                            }
                            cSet.add(r);
                            //res++;
                        }
                    }
                }
                // Print the content on the console
                System.out.println("Case #" + i + ": " + res);
            }
            //Close the input stream
            in.close();
        } catch (IOException e) {
            e.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.
        }
    }

}
