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.Scanner;
import java.util.Vector;


public class ThreadDispatcher{
	
	private static final int CORES = 8;
	private Vector<SolveThread> threads = new Vector<SolveThread>(CORES);
	Scanner scan = new Scanner(System.in);
	private int curCase = 0, T = 0;
	
	public ThreadDispatcher(){
		System.out.println("Paste input for qualification round - problem C");
		T = Integer.parseInt(scan.nextLine());
		for(int i = 1; i <= CORES; i++){
			if(i <= T){
				String line = scan.nextLine();
				curCase++;
				String[] limitsStr = line.split("\\s"); 
				int A = Integer.parseInt(limitsStr[0]);
				int B = Integer.parseInt(limitsStr[1]);
				SolveThread st = new SolveThread(A, B, curCase,this);
				threads.add(st);
				st.run();
			}
		}
	}
	
	public void finish(SolveThread thread){
		System.out.println("Case #" + thread.casenb + ": " + thread.pairs);
		threads.remove(thread);
		if(curCase < T){
			String line = scan.nextLine();
			curCase++;
			String[] limitsStr = line.split("\\s"); 
			int A = Integer.parseInt(limitsStr[0]);
			int B = Integer.parseInt(limitsStr[1]);
			SolveThread st = new SolveThread(A, B, curCase,this);
			threads.add(st);
			st.run();
		}
	}
	
	public static void main(String[] args){
		ThreadDispatcher td = new ThreadDispatcher();
	}
}
