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

public class mainclass {
	
	public static void main(String args[]) throws IOException {
		
		int cases;
		int a;
		int b;
		int flag;
		int counter;
		int[] data;
		int temp = 0;
		int count = 0;
		int mc;

		FileWriter fstream = new FileWriter("out.txt");
    	BufferedWriter out = new BufferedWriter(fstream);
		
		FileReader isr = new FileReader(args[0]);
		Scanner src = new Scanner(isr);
    
		cases = src.nextInt();
		data = new int[2000000];
		for(int i=0;i<2000000;i++)
			data[i] = 0;
		
		for(int j=0;j<cases;j++)
		{
			a=src.nextInt();
			b=src.nextInt();
			counter = 0;
			
			for(int i=0;i<2000000;i++)
				data[i] = 0;
			
			flag = 0;
			
			for(int i=a;i<=b;i++)
			{
				count = 0;
				System.out.print(i);
				if(data[i]==0)
				{
					count++;
					mc = numdig(i);
					temp = recnum(i,mc);
					data[i] = 1;
					for(int p=0;p<mc;p++)
					{
						if(temp>=a&&temp<=b&&data[temp]==0&&mc==numdig(temp))
						{
							System.out.print(" "+temp);
							data[temp] = 1;
							count++;
						}
						temp = recnum(temp,mc);
					}	
					flag = flag+count;
				}		
				System.out.println(" "+count);
				if(count>1)
					counter = counter + (count*(count-1))/2;
			}
			
			System.out.println(" "+flag);
			
			try{
				out.write("Case #"+(j+1)+": "+counter);
		    	out.write("\r\n");
		    	}catch (Exception e){
		    	System.err.println("Error: " + e.getMessage());
		    }
		}
		
		out.close();		
	}			
	
	static int numdig(int n)
	{
		int count = 1;
		while(n/10>0)
		{
			count++;
			n = n/10;
		}
		return count;
	}
	
	static int recnum(int n,int p)
	{
		int pow = 1;
		int num;
		num = p-1;
		for(int i=0;i<num;i++)
		{
			pow = pow*10;
		}
		return (n/10)+(pow*(n%10));
	}
}