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.*;

class RecycledNumbers
{
	static int A,B,result;
	public static void main(String args[]) throws IOException
	{
		FileInputStream fstream = new FileInputStream("C-small-attempt0.in");
		DataInputStream dstream = new DataInputStream(fstream);
		BufferedReader br = new BufferedReader(new InputStreamReader(dstream));
		FileWriter fw = new FileWriter("output.txt");
		BufferedWriter out = new BufferedWriter(fw);
		
		int lines = Integer.parseInt(br.readLine());		//lines LINES OF INPUT TO FOLLOW
		
		for(int j=0;j<lines;j++)                        //EACH LINE FROM SECOND LINE
		{
			result=0;
		
			out.write("Case #"+(j+1)+": ");
		
			
			
			String str = br.readLine();
			String strAray[] = str.split(" ");
			A = Integer.parseInt(strAray[0]);
			B = Integer.parseInt(strAray[1]);
			
			for(int i=B;i>A;i--)
			{
				result = result+howMany(i);
				
				
			}
			
			out.write(Integer.toString(result));// write result
			out.newLine();
		}		
		fstream.close();
		out.close();
		//log.close();
	}
	static int howMany(int m) throws IOException
	{	
		int n,no=0;
		
		int length = (Integer.toString(m)).length();
		if(length==1)
		{
		
			return 0;
		}
		
		for(int i=1;i<length;i++)
		{
			n=rotate(i,m,length);
					
			if(A<=n && n<m && m<=B)
				no++;
		}
		
		return no;
	}
	static int rotate(int j, int m, int length) throws IOException
	{
		
		
	
		
		
		String s = Integer.toString(m);
		int[] intArray = new int[length];
		int number = 0;
	
 
		for (int i = 0; i < length; i++)
		{
			intArray[i] = Character.digit(s.charAt(i), 10);
		}
		for(int i=0;i<j;i++)					//rotate m , i times
		{
			int temp = intArray[0];
			for(int k=0;k<(length-1);k++)
			{
				intArray[k] = intArray[k+1];
			}
			intArray[length-1] = temp;
		}
		for(int i=0;i<length;i++)
		{
			number = number*10 + intArray[i];
		}
		
		return number;
	}
	
	
}