import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;

public class Recycled {
	public static void main(String[] args) throws Exception{
		String inputFile = "C-small-attempt0.in";
		
		BufferedReader input = new BufferedReader(new InputStreamReader(new FileInputStream(inputFile)));
		BufferedWriter output = new BufferedWriter(new OutputStreamWriter(new FileOutputStream("output")));
		long num_cases = Long.parseLong(input.readLine());
		int current_case = 0;
		
		while (current_case < num_cases){
			current_case++;
			
			String[] fields = input.readLine().split(" ");
			int A = Integer.parseInt(fields[0]);
			int B = Integer.parseInt(fields[1]);
			int total = 0;
			
			for (int n = A; n < B; n++){
				for (int m = n+1; m <= B; m++){
					if (isRecycled(n,m)) total++;
				}
			}
			
			System.out.println("Case #" + current_case + ": " + total);
			output.write("Case #" + current_case + ": " + total + "\n");
		}
		output.close();
	}

	private static boolean isRecycled(int n, int m) {
		String sn = ""+n;
		String sm = ""+m;
		if (sn.length() != sm.length()) return false;
		int totaln = 0, totalm = 0;
		for (int i = 0; i < sn.length(); i++){
			totaln += sn.charAt(i);
			totalm += sm.charAt(i);
		}
		if (totaln != totalm) return false;
		for (int i = 0; i < sn.length()-1; i++){
			sm = sm.charAt(sm.length() - 1) + sm.substring(0, sm.length() - 1);
			if (sm.equals(sn)) return true;
		}
		return false;
	}
}

import java.util.Scanner;

public class RecycledNumbers {

   public static void main(String[] argv) {

      int lineCount,counter,mHold;
      int n,m,recycledNumbers;
      Scanner input = null;
      try { input = new Scanner(System.in); }
      catch (Exception e) { System.err.println("FileNotFoundException: " + e.getMessage()); }

      lineCount = input.nextInt();

      for (counter = 0; counter < lineCount; counter++) {
         recycledNumbers = 0;
         input.nextLine();
         n = input.nextInt();
         mHold = input.nextInt();
         m = mHold;

         for (; n < m; n++) {
            for (; m > n; m--) {
               if (Integer.toString(n).length() == Integer.toString(m).length()) {
                  if (checkRecycled(n,m))
                     recycledNumbers++;
               }
            }
            m = mHold;
         }
         
         System.out.printf("Case #%d: %d\n",counter+1,recycledNumbers);
      }
   }

   public static boolean checkRecycled(int n, int m) {
      int check,cursor;
      String toCheck;
      String holder = Integer.toString(n);

      for (cursor = holder.length() - 1; cursor > 0; cursor--) {
         toCheck = "";
         toCheck += holder.substring(cursor,holder.length());         
         toCheck += holder.substring(0,cursor);
         check = Integer.valueOf(toCheck);
         if (check == m)
            return true;
      }
      return false;
   }

}
