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 Main
{
	public static void main(String[] args)throws IOException
	{
		new Main().start();
	}
	public void start()throws IOException
	{
		BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
		StringTokenizer st;
		int test=Integer.parseInt(br.readLine());
		int ans=0;
		int ind=1;
		while(test-->0){
			ans=0;
			st=new StringTokenizer(br.readLine());
			int A=Integer.parseInt(st.nextToken());
			int B=Integer.parseInt(st.nextToken());
			for(int num=A;num<=B;num++){
			String n=num+"";
			int len=n.length();
			for(int i=1;i<len;i++)
			{
				int m=Integer.parseInt(n.substring(i)+n.substring(0,i));
				if((m+"").length()!=len)
					continue;
				if(m<=B && m>=A && m>num){
					ans++;
					//System.out.print(m+" ");
				}
			}
			}
			System.out.println("Case #"+ind+": "+ans);
			ind++;
		}
	}
}