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 C
{
	public static int roll (int i, int a, int b)
	{
		int found = 0;
		int digits = (""+i).length();
		
		int[] vit = new int[digits];
		
		int magic;
		
		int keep, move,done;
		
		
		for (int d = 1; d < digits; d++)
		{
			magic = (int)Math.pow(10, d);
			keep = i/magic;
			move = i%magic;
			magic = (int)Math.pow(10, digits-d);
			done = keep + (move * magic);
		
			
			if (a <= done && done <= b && done < i)
			{
				vit[found] = done;
				found++;
			}
		}
		
		if (found > 1) 
		{
			Arrays.sort(vit);
			for (int j = 0; j < vit.length - 1; j++)
				if (vit[j] != 0 && vit[j] == vit[j+1])
					found--;
		}
		return found;
	}

	public static void main(String... args) throws Exception
	{
		BufferedReader in = new BufferedReader (new FileReader( "C-small-attempt0.in" ));
		
		String line;
		in.readLine(); 
		int casenum = 1;

		int a,b;
			
		String[] nums;
		while ( (line = in.readLine()) != null)
		{
			nums = line.split(" ");
			
			a = Integer.valueOf(nums[0]);
			b = Integer.valueOf(nums[1]);
			
			int result = 0;
			for (int m = a; m <= b; m++)
				result += roll(m,a,b);
	
			System.out.println("Case #" + casenum + ": " + (result));
			casenum++;
		}
	}
}