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.*;
import java.math.*;
import java.io.*;
public class Main
	{
	public static void main(String args[])	throws IOException
		{
		Scanner c=new Scanner(System.in);
		int T=c.nextInt();
		for(int i=0;i<T;i++) 
			{
			int ans=0;
			int A=c.nextInt();
			int B=c.nextInt();
			for(int num=A;num<=B;num++) 
				{
				boolean valid=false;
				//System.out.println("for "+num);
				String num_s=Integer.toString(num);
				TreeSet<Integer> Tr=new TreeSet<Integer>();
				for(int j=1;j<num_s.length();j++) 
					{
					String left=num_s.substring(0,j);
					String right=num_s.substring(j,num_s.length());
					int got=Integer.parseInt(right.concat(left));
					if(got>num&&got>=A&&got<=B)
						Tr.add(got);
					}
				ans+=Tr.size();
				}
			System.out.println("Case #1: "+ans);
			}
		}
	
	}

//must declare new classes here