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.* ; 


public class Utils {
	
	private static void quickAscSort(ArrayList list, int low0, int high0) {

		int low = low0, high = high0;

		if (low >= high) {

			return;

		} else if (low == high - 1) {

			if (((Comparable)list.get(low)).compareTo(list.get(high)) > 0) {

				Object temp = list.get(low);

				list.set(low, list.get(high));

				list.set(high, temp);

			}

			return;

		}

		

		Object pivot = list.get((low + high) / 2);

		list.set((low + high) / 2, list.get(high));

		list.set(high, pivot);

		

		while (low < high) {

			while (((Comparable)list.get(low)).compareTo(pivot) <= 0 && low < high) {

				low++;

			}

			while (((Comparable)list.get(high)).compareTo(pivot) >= 0 && low < high) {

				high--;

			}

			if (low < high) {

				Object temp = list.get(low);

				list.set(low, list.get(high));

				list.set(high, temp);

			}

		}

		list.set(high0, list.get(high));

		list.set(high, pivot);

		quickAscSort(list, low0, low - 1);

		quickAscSort(list, high + 1, high0);

	}

	
	private static void quickDescSort(ArrayList list, int low0, int high0) {

		int low = low0, high = high0;

		if (low >= high) {

			return;

		} else if (low == high - 1) {

			if (((Comparable)list.get(low)).compareTo(list.get(high)) > 0) {

				Object temp = list.get(low);

				list.set(low, list.get(high));

				list.set(high, temp);

			}

			return;

		}

		

		Object pivot = list.get((low + high) / 2);

		list.set((low + high) / 2, list.get(high));

		list.set(high, pivot);

		

		while (low < high) {

			while (((Comparable)list.get(low)).compareTo(pivot) >= 0 && low < high) {

				low++;

			}

			while (((Comparable)list.get(high)).compareTo(pivot) <= 0 && low < high) {

				high--;

			}

			if (low < high) {

				Object temp = list.get(low);

				list.set(low, list.get(high));

				list.set(high, temp);

			}

		}

		list.set(high0, list.get(high));

		list.set(high, pivot);

		quickDescSort(list, low0, low - 1);

		quickDescSort(list, high + 1, high0);

	}
	

	public static void sortAscList(ArrayList list) {

		Collections.sort(list) ;
	

	}
	
	public static void sortDescList(ArrayList list) {

		Collections.sort(list,Collections.reverseOrder()) ;

	}
	
	public static ArrayList<String> toStrArrayList(String str)
	{
      StringTokenizer stTokenizer = new StringTokenizer(str) ;
		
		ArrayList<String> readStrList = new ArrayList<String>(stTokenizer.countTokens()) ; 
		
		while(stTokenizer.hasMoreTokens())
		{
			readStrList.add(stTokenizer.nextToken()) ;
		}
		
		return readStrList ; 
	}

	
	public static ArrayList<Integer> toIntArrayList(String str)
	{
      StringTokenizer stTokenizer = new StringTokenizer(str) ;
		
		ArrayList<Integer> readIntList = new ArrayList<Integer>(stTokenizer.countTokens()) ; 
		
		while(stTokenizer.hasMoreTokens())
		{
			readIntList.add(Integer.parseInt(stTokenizer.nextToken())) ;
		}
		
		return readIntList ; 
	}
	
	public static void printArrayList(ArrayList list,String seperator)
	{
         ListIterator iterator = list.listIterator() ;
		
		while(iterator.hasNext())
		{
			System.out.print(iterator.next()) ;
			if(iterator.hasNext()) System.out.print(seperator) ;
			
		}
		
		System.out.print("\n"); 
		
	}
	
	
	public static void reverseArrayList(ArrayList list)
	{
     Collections.reverse(list) ; 
		
	}
	
	
}
 
 

	

