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.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;


public class RecycledNumbers 
{
public static void main(String[] args) throws IOException {
	FileWriter wr=new FileWriter("Output.txt");
	BufferedWriter buff=new BufferedWriter(wr);
	
	FileReader read=new FileReader("C-small-attempt0.in");
	BufferedReader buffr=new BufferedReader(read);
	
	String str;
	str=buffr.readLine();
	
	int n=Integer.parseInt(str);
	int j=1;
	int a,b;
	int num,lower,upper;
	int total;
	while(j<=n)
	{
		
		str=buffr.readLine();
		Scanner sc=new Scanner(str);
		sc.useDelimiter(" ");
		a=sc.nextInt();
		b=sc.nextInt();
		
		upper=b;
		lower=a;
		total=0;
		while(a<=b)
		{
		
		String first=Integer.toString(a);
	String orig=first;
	String newStr;
	int curr=Integer.parseInt(first);
		if(first.length()!=1)
		{
			
			while(true)
			{
				
				first=first.charAt(first.length()-1)+first.substring(0,first.length()-1);
				if(first.equals(orig))
					break;
				
				if(!first.startsWith("0"))
				{
				num=Integer.parseInt(first);
				if(num<=upper && num>=lower && num>curr)
					++total;	
				}
				
			}
		}
		++a;
		}
		StringBuffer temp = new StringBuffer("Case #"+j+": ");
		temp=temp.append(Integer.toString(total));
		buff.write(temp.toString());
		buff.newLine();
		++j;
	}
	
	buff.close();
}
}
