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.*;
import java.math.*;
public class recycle
{
	static int A=0;
	static int B=0;
	static int C=0;
	static int T=0;
	static int ans=0;
	static HashSet<Integer> ansset= new HashSet<Integer>();
	public static void main(String[] args)
	{
		Scanner scan= new Scanner(System.in);
		
		T=scan.nextInt();
		
		for(int i=1; i<=T; i++)
		{
			A=scan.nextInt();
			B=scan.nextInt();
			String s1="";
			C=0;
			ans=0;
			
			if(B>10)
			for(int n=A; n<B; n++)
			{
				s1=n+"";
				String t1="";
				String t2="";
				ansset.clear();
				for(int j=1; j<=s1.length(); j++)
				{
					t1=s1.substring(0,j);
					t2= s1.substring(j);
					C= Integer.parseInt(t2+t1);
			//		System.out.println(C);
					if(C>n && C<=B)
						ansset.add(C);
				}
				ans+=ansset.size();
			}
			
			System.out.println("Case #"+i+": "+ans);
		}
	}

}