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.*;

public class RecycledNumbers {

	public static void main(String[] args) {
		if(args.length < 1) {
			System.out.println("Need a filename.");
		}
		else {
			File file = new File(args[0]);
			try {
				BufferedReader fin = new BufferedReader(new InputStreamReader(new FileInputStream(file)));
				int numCases = Integer.parseInt(fin.readLine());
				for(int i=0; i<numCases; i++) {
					String line = fin.readLine();
					int min = Integer.parseInt(line.substring(0, line.indexOf(" ")).trim());
					int max = Integer.parseInt(line.substring(line.indexOf(" ")).trim());
					int count = 0;
					for(int a=min; a<max; a++) {
						for(int b = a+1; b<=max; b++) {
							if(isRecycled(a, b))
								count++;
						}
					}
					System.out.println("Case #" + (i+1) + ": " + count);
				}
			} catch(FileNotFoundException e) {
				System.err.println("File not found!");
			} catch(IOException e) {
				System.err.println("Could not read file!");
			}
		}
	}
	
	private static boolean isRecycled(int a, int b) {
		String aStr = "" + a;
		String bStr = "" + b;
		for(int i=1; i<aStr.length(); i++) {
			if((aStr.substring(i) + aStr.substring(0, i)).equals(bStr))
				return true;
		}
		return false;
	}
}
