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.File;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.util.Scanner;
import java.util.TreeSet;


public class Main {

	/**
	 * @param args
	 * @throws FileNotFoundException 
	 */
	public static boolean isRecycledPair(String N, String M) {
		if (N.equals(M))
			return false;
		boolean retVal = false;
		
		for (int i=0; i<N.length(); i++) {
			String aux = N.substring(i, N.length()) + N.substring(0, i) ;
			if (aux.equals(M))
				return true;
		}
		
		return retVal;
	}
	
	public static void main(String[] args) throws FileNotFoundException {
		// TODO Auto-generated method stub
		
		Scanner reader = new Scanner(new File("C-small-attempt2.in"));
		PrintWriter writer = new PrintWriter(new File("output.txt"));
		int cases = reader.nextInt();
		for (int i=0; i<cases; i++) {
			long A = reader.nextLong();
			long B = reader.nextLong();
			//TreeSet<String> set = new TreeSet<String>(); 
			int x = 0;
			for (long n=A; n<=B; n++) {
				for (long m=n; m<=B; m++) {
					String fN = Long.toString(n);
					String fM = Long.toString(m);
					if (Main.isRecycledPair(fN, fM)) {
						//set.add(fN + "," + fM);
						x++;
					}
				}
			}
			writer.println("Case #" + (i+1) + ": " + x);
		}
		System.out.println("done");
		reader.close();
		writer.close();
		
	}

}
