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

class B
{
	public static void main(String[] args) 
	{
		try
		{
			BufferedReader br = new BufferedReader(new FileReader("B.in"));
			PrintWriter pw = new PrintWriter(new FileWriter("B.out"));
			int X = Integer.parseInt(br.readLine());

			for(int i=0; i<X; i++)
			{
				String[] S = br.readLine().split(" ");
				int A = Integer.parseInt(S[0]);
				int B = Integer.parseInt(S[1]);
				int R = 0;

				int x = 1;
				int n = 0;
				while(A/x > 0) {
					n++;
					x *= 10;
				}

				for(int j=A; j<B; j++) {
					Set<Integer> seen = new HashSet<Integer>();
					for(int k=1; k<n; k++) {
						int p1 = j % (int)Math.pow(10, k);
						int p2 = (int) Math.pow(10, n-k);
						int p3 = j / (int)Math.pow(10, k);
						int y = p1*p2 + p3;
						
						if(j < y && !seen.contains(y) && y <= B) {
							seen.add(y);
							R++;
						}
					}
				}

				pw.printf("Case #%d: %d\n", i+1, R);
				pw.flush();
			}
		}
		catch(Exception e)
		{ 
			e.printStackTrace();
		}
	}
}


package Qualification;
import Practice.*;
import java.util.*;
import java.io.*;

public class C {
    
    public void ejecutar() throws Exception {
        Scanner sc = new Scanner(new FileReader("/home/gomezluisj/Descargas/C-large.in"));
	PrintWriter pw = new PrintWriter(new FileWriter("/home/gomezluisj/Descargas/C.out"));
	int caseCnt = sc.nextInt();
        for (int caseNum = 0; caseNum < caseCnt; caseNum++) {
            pw.print("Case #" + (caseNum + 1) + ": ");
            int ini=sc.nextInt();
            int fin=sc.nextInt();
            int res=0;
            for (int i = ini; i < fin; i++) {
                String number=Integer.toString(i);
                List<Integer> lista=new ArrayList<Integer>();
                for (int j = 1; j < number.length(); j++) {
                    String compare=number.substring(j)+number.substring(0, j);
                    
                    int num=Integer.parseInt(compare);
                    if(num>i&&num<=fin){
                        Iterator iter=lista.iterator();
                        int flag=0;
                        while(iter.hasNext()){
                            if((Integer)iter.next()==num){
                                flag=1;
                            }
                        }
                        if (flag==0){
                            res=res+1;
                            lista.add(num);
                        }
                        
//                        System.out.println(""+i+" "+num);
                    }
                }
            }
            pw.println(res);
        }	
        pw.flush();
        pw.close();
        sc.close();
    }
    
    
    public static void main(String[] args) throws Exception {
		new C().ejecutar();
	}
}
