package codejam;

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

public class RecycledNumbers {
	public static void main(String[] args) throws IOException {
		BufferedReader in = new BufferedReader(new FileReader("in.txt"));
		PrintWriter out = new PrintWriter(new File("out.txt"));
		
		int T = Integer.parseInt(in.readLine());
		for (int t = 1; t <= T; ++t) {
			String[] parts = in.readLine().split("[ ]+");
			int A = Integer.parseInt(parts[0]);
			int B = Integer.parseInt(parts[1]);
			
			int cnt = 0;
			for (int i = A; i < B; ++i) {
				String str = String.valueOf(i);
				int n = str.length();
				String res = "";
				Set<Integer> seen = new HashSet<Integer>();
				for (int j = n - 1; j > 0; --j) {
					res = str.substring(j) + str.substring(0, j);
					int k = Integer.parseInt(res);
					if (k > i && k <= B) {
						//System.out.println("(" + i + ", " + k + ")");
						if (!seen.contains(k)) {
							++cnt;
							seen.add(k);
						}
					}
				}
			}

			out.println("Case #" + t + ": " + cnt);
		}
		
		in.close();
		out.close();
		System.exit(0);
	}
}

import java.io.*;
class RecycledNumbers
{
  void main()throws IOException
  {
      BufferedReader obj= new BufferedReader(new FileReader("C-small-attempt0.in"));
      PrintWriter p= new PrintWriter(new BufferedWriter(new FileWriter("output.txt")));
      
      int T=Integer.parseInt(obj.readLine());
      long a,b,n,m,q,order,i,count=0;String s;
      
      for(i=1;i<=T;i++)
      {
          s=obj.readLine();
          
          a=Integer.parseInt(s.substring(0,s.length()/2));
          b=Integer.parseInt(s.substring(s.length()/2+1,s.length()));
          order=s.length()/2;
          
          for(n=a;n<=b;n++)
          {
              for(q=1;q<order;q++)
              {
                  m=(long)(n%Math.pow(10,q)*Math.pow(10,order-q)+(n/Math.pow(10,q)));
                  if(m>n&&m<=b)
                   count++;
                }
         
            }
            
            p.println("Case #"+i+": "+count);
                count=0;
      }
      p.flush();
      p.close();
    }
}
