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.HashSet;
import java.util.Set;


public class TestCase {

	private int totalDigit = -1;
	private int max;
	private int min;
	public TestCase(String s) {
		String[] results = s.split(" ");
		totalDigit = results[0].length();
		min = Integer.parseInt(results[0]);
		max = Integer.parseInt(results[1]);
	}
	
	public int solve() {
		Set<Pair> total = new HashSet<Pair>();
		for (int i = min; i <= max; i++) {
			for (int j = 1; j < totalDigit; j++) {
				Pair p = getPair(i, j);
				if (p != null) {
					//System.out.printf("Adding pair(%d, %d), %b\n", p.getFirst(), p.getSecond(), total.add(p));
					total.add(p);
				}
			}
		}
		return total.size();
		
	}

	private Pair getPair(int number, int digit) {
		String source = String.valueOf(number);
		String target;
		Pair result = null;
		String first;
		String second;
//		if (digit == 1) {
//			first = source.substring(totalDigit - digit);
//			second = source.substring(0, digit);
////			target = source.substring(0, totalDigit) + source.substring(totalDigit - digit);
//		} else if (digit == 2) {
			first = source.substring(totalDigit - digit);
			second = source.substring(0, totalDigit - digit);
//		}
		target =  first + second;
		int targetNumber = Integer.parseInt(target);
		if (targetNumber >= min && targetNumber <= max & targetNumber != number) {
			result = new Pair(number, targetNumber);
		}
		return result;
	}
}
