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.io.IOException;
import java.io.PrintWriter;
import java.util.Scanner;

public class RecycledNumbers {
	
	public static final String INPUT = "C-small-attempt0.in";
	public static final String OUTPUT = "output";
	
	public static void main(String args[]) throws IOException{
		Scanner s = UtilGoogle.readFile(INPUT);
		PrintWriter w = UtilGoogle.writeFile(OUTPUT);
		int t = Integer.parseInt(s.nextLine());
		
		for(int i = 0; i < t; i++){
			Integer A = s.nextInt();
			Integer B = s.nextInt();
			Integer N = calculateRecycleds(A, B);
			
			w.println("Case #" + (i + 1) + ": " + N);
		}
		s.close();
		w.close();
	}
	
	public static Integer calculateRecycleds(Integer A, Integer B){
		Integer qtd = 0;
		
		for(Integer i = A; i < B; i++){
			for(Integer j = i + 1; j <= B; j++){
				if(isRecycled(i, j)) qtd++;
			}
		}
		return qtd;
	}
	
	public static boolean isRecycled(Integer n, Integer m){
		String first = String.valueOf(n);
		String second = String.valueOf(m);
		
		for(int i = 0; i < first.length() - 1; i++){
			String temp = second.substring(i + 1, first.length());
			temp = temp.concat(second.substring(0, i+1));
			if(temp.equals(first)) return true;
		}
		return false;
	}
}
