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.*;
import java.util.*;
import java.io.*;
import java.util.*;
import static java.lang.System.*;  

import java.util.Map;
import java.util.TreeMap;
import java.util.Collection;
import java.util.List;
import java.util.Arrays;
import java.util.Iterator;
public class goog {
        
 
    public static void main(String[] args) throws IOException {
   Scanner file = new Scanner(new File("C-small-attempt0.in."));
     PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter("prob1.out")));
     int times = file.nextInt();
       file.nextLine();
       
       for(int i = 0;i<times;i++) {
       ArrayList<String> answers = new ArrayList<String>();
       out.print("Case #"+(i+1)+": ");
       int a =file.nextInt();
       int b= file.nextInt();
      
       int answer =0;
       int random =0;
       for(int d = a; d<b+1;d++) {
       	for(int e =d+1;e<b+1;e++) {
       		if(e<=9||d<=9) continue;
       		else if(answers.contains("" + d + e)) {
       		    // dont know what to do, randomly adddeed
       		    random++;
       		}
       		else {
       			//set string first number
       			String g = "" + d;
       			//set string to second number
       			String h = "" + e;
       			//set temp string to second thing
       			String change = h;
       				// rotate it to see if rotation verison works
       			h = h.substring(h.length()-1) + h.substring(0,h.length()-1);
       			while(!(h.equals(change))) {
       				// if rotated isnt the same
       				if(h.equals(g)) {
       					// if rotated is the same as the one
       					answer++;
       					answers.add("" + d + e);
       						   break;
       				}
       				// rotate it again
       				h = h.substring(h.length()-1) + h.substring(0,h.length()-1);
       			}
       			
       		}
       	}
       }
       out.println(answer);
       System.out.println(answer);
       }
      out.close();
      System.exit(0);
    }
}
