import java.io.*;

class code1
{
	public static void main(String args[]) throws Exception 
	{
		File ii = new File ("C-small-attempt1.in");
		FileInputStream fis = new FileInputStream(ii);
		BufferedReader  br = new BufferedReader(new InputStreamReader (fis));
		int cases = Integer.parseInt(br.readLine());
		FileOutputStream fout = new FileOutputStream ("output.txt");
		DataOutputStream dout = new DataOutputStream (fout);
		int total=0;
		for(int i=0;i<cases;i++){
		String temp = br.readLine();
		String parts [] = temp.split(" ");
		int lower = Integer.parseInt(parts[0]);
		int upper = Integer.parseInt(parts[1]);
		System.out.println(lower+" "+upper);
		
		for(int j=lower;j<=upper;j++)
		{
			int abc = j;int length=0;
			if(j<10)continue;
			while (abc!=0){abc/=10;length++;}
			abc=j;
			for(int m=0;m<length-1;m++){
				int shift = abc%10;
				abc=abc/10;
				System.out.println("hi "+j);
				abc=abc+shift*power(10,length-1);
				if(abc<=upper&&shift!=0&&abc>j)total++;
				System.out.println(total);
			}
		}
 		dout.writeBytes("Case #"+(i+1)+ ": "+total+"\n");
 		total=0;
		}//for close
		
	}

	private static int power(int i, int j) {
		int no=1;
		for(int a=0;a<j;a++){no=10*no;}
		return no;
	}
}
import java.io.*;

public class RecycledNumbers {


	public static void main(String[] args) {

		BufferedReader in;
		BufferedWriter out;
		int T, i;
		String line;
		

		try {
			in = new BufferedReader(new FileReader("input.txt"));
			out = new BufferedWriter(new FileWriter("output.txt"));
		} catch (FileNotFoundException e) {
			System.out.println(e.getMessage());
			return;
		} catch (IOException e) {
			System.out.println(e.getMessage());
			return;
		}

		try {
			T = Integer.parseInt(in.readLine());

			for (i = 0; i < T; i++) {
				line = in.readLine();

				String lineToWrite = "Case #" + (i+1) + ": ";

				lineToWrite += String.valueOf(solve(line));

				out.write(lineToWrite + "\n");

			}
			in.close();
			out.close();
		} catch (IOException e) {
			System.out.println(e.getMessage());
			return;
		}
	}

	public static int solve(String input) {
		int a, b, counter;
		String[] inputs = input.split(" ");
		a = Integer.parseInt(inputs[0]);
		b = Integer.parseInt(inputs[1]);
		counter = 0;

		for (int n = a; n < b; n++) {

			int i;
			for (i = 10; i < b; i *= 10) {
				int m = split(n, i);

				if (m > n && m <= b) counter++;

			}


		}
		return counter;

	}
	
	public static int split(int num, int pow) {
		int half1, half2;
		half1 = num/pow;
		half2 = (num%pow) * (orderOf(num) / pow);
		return half1 + half2;
	}
	
	public static int orderOf(int num) {
		int i = 1;
		while (i < num) {
			i*=10;
		}
		return i;
	}
}
