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.util.ArrayList;
import java.util.List;


public class RecycledNumbers {

	private int A;
	private int B;
	
	public RecycledNumbers(int A, int B) {
		this.A = A;
		this.B = B;
	}
	
	public int calculate() {
		int result = 0;
		int digitCount = Integer.toString(A).length();
		
		if (digitCount == 1) return 0;
		
		List<String> numbers = new ArrayList<String>();
		for (int i = A; i < B + 1; i++) {
			numbers.add(Integer.toString(i));
		}
		
		for (int i = 0; i < numbers.size(); i++) {
			String number = numbers.get(i);
			
			for (int j = 1; j < digitCount; j++) {
				String reverseNumber = number.substring(j) + number.substring(0, j);
				int reversInt = Integer.parseInt(reverseNumber);
				
				if ((reversInt <= B) && (reversInt > Integer.parseInt(number))) {
//					System.out.println("A(" + A + ") <= " + number + " < " + reverseNumber + " <=B(" + B + ")");
					result++;
				}
			}
		}
		
		return result;
	}
	
	public static List<RecycledNumbers> parseFromFile(List<String> readInput) {
		List<RecycledNumbers> result = new ArrayList<RecycledNumbers>();
		int testCaseCount = Integer.parseInt(readInput.get(0));

		for (int i = 0; i < testCaseCount; i++) {
			String line[] = readInput.get(i + 1).split(" ");

			result.add(new RecycledNumbers(Integer.parseInt(line[0]), Integer.parseInt(line[1])));
		}

		return result;
	}
	
	@Override
	public String toString() {
		return "A = " + A + "; B = " + B;
	}
}
