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.*;
import java.io.*;
public class Josephus {
   public static void main(String[] args)throws IOException {
     FileInputStream is = null;
     try {
       is = new FileInputStream("input.txt");
       DataInputStream in = new DataInputStream(is);
       BufferedReader br = new BufferedReader(new InputStreamReader(in));
       String str;
       int n;
       String sn;
       int m;
       String sm;
       int counter = 0;
       int loop = Integer.parseInt(br.readLine());
       ArrayList<Integer> nlist = new ArrayList<Integer>();
       ArrayList<Integer> mlist = new ArrayList<Integer>();
       
       for (int i = 0 ; i < loop ; i++)  {
         str = br.readLine();
         n = Integer.parseInt(str.substring(0,str.length()/2));
         m = Integer.parseInt(str.substring(str.length()/2+1,str.length()));
         for (int k = n ; k < m ; k++){
           String current = Integer.toString(k);
           for (int j = 0; j< current.length()-1; j++){
             char c = current.charAt(0);
             current += c;
             
             current = current.substring (1,current.length());
             int check = Integer.parseInt(current);
             if (check > k && check <= m){
               nlist.add(k);
               mlist.add(check);
              // System.out.println(k+" , "+current);
               counter++;
              }
           }
         }
         System.out.println("Case #"+(i+1)+": "+counter);
         //System.out.println(nlist);
         //System.out.println(mlist);
         counter = 0; 
       }
 
       in.close();
     }catch (Exception e){//Catch exception if any
       System.err.println("Error: " + e.getMessage());
     }
   }
}