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.io.*;
import java.util.ArrayList;
import java.util.List;

public abstract class JamProblem {

    int caseCount;
    int lastLine;

    abstract String solveCase(JamCase jamCase);
    abstract JamCase parseCase(List<String> file, int line);
    List<String> loadFile() throws IOException {
        FileReader inputStream = new FileReader("C:\\projekt\\codejam\\src\\input.txt");
        BufferedReader reader = new BufferedReader(inputStream);
        List<String> list = new ArrayList<String>();
        while (true) {
            String line = reader.readLine();
            if (line == null) {
                break;
            }
            list.add(line);
        }
        return list;
    }

    void go() throws IOException {
        List<String> file = loadFile();


        parseFirstLine(file);
        FileWriter writer = new FileWriter("C:\\projekt\\codejam\\src\\otput.txt");
        for (int c=0; c< caseCount; c++) {
            JamCase casee= parseCase(file, lastLine);
            lastLine += casee.lineCount;
            String s = solveCase(casee);
            writer.write("Case #" + (c+1) +": " + s + "\n");
        }
        writer.close();
    }

    void parseFirstLine(List<String> file) {
        int[] firstLine = JamUtil.parseIntList(file.get(0), 1);
        this.caseCount = firstLine[0];
        lastLine = 1;
    }
}
