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.*;

public class RecycledNumber {
	int digits;
	Collection<String> set = new HashSet<String>(); 
	public int countInInterval(int a, int b)
	{
		int count = 0, rotation;
		String temp = ""+ a;
		this.digits = temp.length();
		
		
		for(int i = a; i<b; i++)
		{
			for(int j = 1; j<digits;j++)
			{
				rotation = rotate(i, j);
				if(rotation<=b&&rotation>i&&!set.contains(i+" "+rotation)){ 
					count++;
					set.add(i + " " + rotation);
				}
			}
		}
		return count;

	}
	
	private int rotate(int num, int distance)
	{
		String temp = ""+num;
		temp = temp.substring(distance)+temp.substring(0,distance);
		num = Integer.parseInt(temp);
		return num;
	}
}
