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.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * @author Hossam Yasseen
 */
public class ProblemC {

	/**
	 * @param args
	 */
	static Integer startEdge , endEdge ;
	
	public static void main(String[] args) {
		
		int numberOfRecycledNumbers = 0;

		String[] result = null ;
		for (int counter0 = 1; counter0 < args.length; counter0++) {
			result = args[counter0].split("\\s");
			startEdge = Integer.parseInt(result[0]);
			endEdge = Integer.parseInt(result[1]);
			numberOfRecycledNumbers=0 ;
			
			for (int counterA = startEdge; counterA < endEdge; counterA++) {
				List<Integer> recycledNumber = recycledNumbers(counterA);
				for (int counter = 0; counter < recycledNumber.size(); counter++) {
					if (recycledNumber.get(counter) <= endEdge )
						numberOfRecycledNumbers++;
				}
			}
			System.out.println("Case #" + counter0 + ": "
					+ numberOfRecycledNumbers);
		}
	}

	private static List<Integer> recycledNumbers(Integer number) {

		Map<Integer,String> map = new HashMap<Integer, String>();
		String dummyValue = null ;
		String candidateNumber = "";

		char[] characters = number.toString().toCharArray();

		int index;
		for (int counter = 0; counter < characters.length; counter++) {
			index = counter ;
			int loops = 0 ;
			candidateNumber="";
			
			for ( ; loops < characters.length; index++) {
				candidateNumber += characters[index % characters.length];
				loops++ ;
			}
			
			if(Integer.parseInt(candidateNumber)>number.intValue())
				map.put(Integer.parseInt(candidateNumber),dummyValue);
			
		}
		
		List<Integer> recycledNumber =  new ArrayList<Integer>( map.keySet());
		return recycledNumber;
	}
}
