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.IOException;
import java.text.NumberFormat;
import java.util.List;

public class Welcome extends JamProblem {

    String welc = "welcome to code jam";

    public static void main(String[] args) throws IOException {
        Welcome p = new Welcome();
        p.go();
    }

    @Override
    String solveCase(JamCase jamCase) {
        WelcomeCase cas = (WelcomeCase) jamCase;
        int length = welc.length();
        int strL = cas.str.length();
        String str = cas.str;

        int[][] tab = new int[length][strL];
        for (int i = length - 1; i >= 0; i--) {
            char c = welc.charAt(i);
            for (int j = strL - 1; j >= 0; j--) {
                if (i == length - 1) {
                    if (j == strL - 1) {
                        tab[i][j] = str.charAt(j) == c ? 1 : 0;
                    } else {
                        tab[i][j] = mod(tab[i][j + 1] + (str.charAt(j) == c ? 1 : 0));
                    }
                } else {
                    if (j == strL - 1) {
                        tab[i][j] = 0;
                    } else {
                        tab[i][j] = mod(tab[i][j + 1] + (str.charAt(j) == c ? 1 : 0) * tab[i + 1][j]);
                    }
                }
            }
        }
        NumberFormat nf = NumberFormat.getInstance(); // Get Instance of NumberFormat
        nf.setMinimumIntegerDigits(4); // The minimum Digits required is 5
        nf.setMaximumIntegerDigits(4); // The maximum Digits required is 5
        nf.setGroupingUsed(false);
        return nf.format(tab[0][0]);  //To change body of implemented methods use File | Settings | File Templates.
    }

    @Override
    JamCase parseCase(List<String> file, int line) {
        WelcomeCase cas = new WelcomeCase();
        cas.lineCount = 1;
        cas.str = file.get(line);
        return cas;
    }

    int mod(int i) {
        return i % 10000;
    }
}

class WelcomeCase extends JamCase {
    String str;
}
