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.*;
import java.io.*;

public class recycled{
	
	public static void main(String[] args)
	{
		Scanner in = new Scanner(System.in);

		//System.out.println("Hello world!");
		String scases = in.nextLine();
		int cases = Integer.parseInt(scases);

		for(int i =1;i<=cases;i++)
		{
			String line = in.nextLine();
			String[] split = line.split(" ");
			String first = split[0];
			String second = split[1];
			int ifirst = Integer.parseInt(first);
			int isecond = Integer.parseInt(second);
			int count = cases(ifirst,isecond);

			System.out.println("Case #"+i+": "+count);
		}
		//System.out.println(count);
		//cases();
	}
	public static int cases(int lower, int upper)
	{
		int count =0;
		//int lower = 1111;
		//int upper = 2222;
		for(int i =lower; i<=upper; i++)
		{
			for(int j =lower; j<=upper; j++)
			{				
				if(isRecycled(i,j)&&i!=j){
					//System.out.println(i+","+j);
					count++;
				}
			}
		}
		//System.out.println(count/2);
		return count/2;
		//System.out.println(isRecycled(12345,34512));
	}
	public static boolean isRecycled(int a, int b)
	{
		String aa = ""+a;
		String bb = ""+b;

		for(int i=0;i<aa.length();i++){

			String test = aa.substring(i,aa.length()) + aa.substring(0,i);
			//System.out.println(test);
			if(test.equals(bb)){
				return true;
			}
		}

		return false;
	}
}