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.*;
public class trie
{
    public static void main(String[] args)throws IOException
    {
     int i,j,a,b,n,ans;
        String s1="",p1="";
        solver h1=new solver();
        Scanner fin=new Scanner(new File("A.txt"));
        s1=fin.nextLine();
        n=Integer.parseInt(s1);
        FileWriter fstream=new FileWriter("out.txt");
        BufferedWriter out=new BufferedWriter(fstream);
        for(i=0;i<n;i++)
        {
            s1="";
            j=0;
            s1=fin.nextLine();
            out.write("Case #");
            out.write(Integer.toString(i+1));
            out.write(": ");
            while(s1.charAt(j)!=' ')
            {
                p1=p1+s1.charAt(j);
                j++;
            }
            a=Integer.parseInt(p1);
            p1="";
            j++;
            while(j<s1.length())
            {
                p1=p1+s1.charAt(j);
                j++;
            }
            b=Integer.parseInt(p1);
            p1="";
            ans=h1.solve(a,b);
            out.write(Integer.toString(ans));
            out.write("\n");
        }
        out.close();
        
    }
    
}
