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.LinkedList;
import java.util.List;
import java.util.Set;

public class ProblemC {
	public static void main(String argv[])
	{
//		IOSystem ioSystem = new IOSystem("problem/A-small-attempt2");
		IOSystem ioSystem = new IOSystem("problem/C-small-attempt0");
//		IOSystem ioSystem = new IOSystem("problem/test");

		ioSystem.nextLong();
		while(ioSystem.hasNext())
		{
			int A = ioSystem.nextInt();
			int B = ioSystem.nextInt();

			int ret = 0;
			Set<String> set = new HashSet<String>();

			//smallã ãã§ãã¨ãã
			for(int i = A;i<B;i++)
			{
				if(i<10)continue;

				String s = ""+i;
				StringBuffer sb  = new StringBuffer(s);

				for(int j=0;j<sb.length()-1;j++)
				{
					char c = sb.charAt(0);
					sb.deleteCharAt(0);
					sb.append(c);

					if(sb.charAt(0)=='0')continue;

					int pair = Integer.parseInt(sb.toString());
					if(pair <= B && i < pair)
					{
//						System.out.println(s+":"+sb.toString());
						if(set.contains(i+sb.toString()))
						{
//							System.out.println("!!!"+i+":"+sb.toString());
						}
						else
						{
							ret++;
							set.add(i+sb.toString());
						}
					}

				}

			}


			ioSystem.appendAnswer(ret);
		}

		ioSystem.output();
	}
}


