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;
	}
}
/**
 * Google CodeJam 2012
 * Qualification round - Problem C
 * Recycled Numbers
 * 
 * Solved by Üllar Soon <positivew@gmail.com>
 */
package eu.positivew.codejam.recycled;

import java.io.BufferedReader;
import java.io.IOException;

import eu.positivew.codejam.framework.CodeJamInputCase;
import eu.positivew.codejam.framework.CodeJamInputParser;


/**
 * Recycled Numbers input parser class.
 * 
 * @author Üllar Soon <positivew@gmail.com>
 */
public class RecycledNumbersParser implements CodeJamInputParser {

	@Override
	public CodeJamInputCase readCase(BufferedReader input) {
		CodeJamInputCase inCase;
		
		try {
			String line = input.readLine();
			String[] args = line.split(" ");
			Integer[] abArr = new Integer[args.length];
			for(int i = 0; i < args.length; i++) {
				try {
					abArr[i] = Integer.parseInt(args[i]);
				}
				catch(NumberFormatException ex) {
					System.err.println("Badly formatted test case data!");
				}
			}
			inCase = new RecycledNumbersCase(abArr);
			return inCase;
		}
		catch (IOException e) {
			System.err.println("Failed to read test case data!");
			return null;
		}
	}

}
