import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

public class Q3M {
	public static void main(String[] args) throws Exception {
		compute();
	}

	private static void compute() throws Exception {
		BufferedReader br = new BufferedReader(new FileReader(new File(
				"C:\\work\\Q3\\C-small-attempt0.in")));
		String line = null;
		int i = Integer.parseInt(br.readLine());
		List l = new ArrayList();
		for (int j = 0; j < i; j++) {
			line = br.readLine();
			String[] nums = line.split(" ");
			l.add(calculate(nums));
		}
		writeOutput(l);
	}

	private static int calculate(String[] nums) {
		int min = Integer.parseInt(nums[0]);
		int max = Integer.parseInt(nums[1]);
		int count = 0;
		List l = new ArrayList();
		for (int i = min; i <= max; i++) {
			for (int times = 1; times < countDigits(i); times++) {
				int res = shiftNum(i, times);
				if (res <= max && i < res) {
					if ((!l.contains((i + ":" + res)))) {
						l.add(i + ":" + res);
						l.add(res + ":" + i);
						count++;
					}
				}
			}
		}
		return count;
	}

	private static boolean checkZeros(int temp, int res) {
		if (temp % 10 == 0 || res % 10 == 0)
			return false;
		return true;
	}

	private static int shiftNum(int n, int times) {
		int base = (int) Math.pow(10, times);
		int temp2 = n / base;
		int placeHolder = (int) Math.pow((double) 10,
				(double) countDigits(temp2));
		int res = placeHolder * (n % base) + temp2;
		if (countDigits(res) == countDigits(n)) {
			return res;
		} else {
			return 2000001;
		}
	}

	public static int countDigits(int x) {
		if (x < 10)
			return 1;
		else {
			return 1 + countDigits(x / 10);
		}
	}

	private static void writeOutput(List l) throws Exception {
		StringBuffer b = new StringBuffer();
		int i = 1;
		BufferedWriter br = new BufferedWriter(new FileWriter(new File(
				"C:\\work\\Q3\\ans.txt")));
		for (Iterator iterator = l.iterator(); iterator.hasNext();) {
			br.write("Case #" + i++ + ": " + iterator.next());
			br.newLine();
		}
		br.close();
	}

}
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));
	}
}