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.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;


public class Pairs {

	/**
	 * @param args
	 */
	
	public static int counter=0;
	
	public static void checkhelper(String a,String b)
	{
		if(a.length()!=b.length())
			return;
		if(a.concat(a).contains(b))
			counter++;	
	}
	
	
	public static void check(int a,int b)
	{
		for(int i=a;i<=b;i++)
		{
			for(int j=i+1;j<=b;j++)
			checkhelper(""+i, ""+j);
			
		}
		
		
	}
	public static void main(String[] args) throws IOException {
		// TODO Auto-generated method stub

		
		BufferedWriter bw=new BufferedWriter(new FileWriter("out2.out"));
		BufferedReader bf=new BufferedReader(new FileReader("input.txt"));
		int count=Integer.parseInt(bf.readLine());
		for(int i=0;i<count-1;i++)
		{
			
			String line=bf.readLine();
		String []a=line.split(" ");
		
		check(Integer.parseInt(a[0]),Integer.parseInt(a[1]));
	
	bw.write("Case #"+(i+1)+": "+counter);
	bw.newLine();
	counter=0;
	}
		
		String line=bf.readLine();
		String []a=line.split(" ");
		
		check(Integer.parseInt(a[0]),Integer.parseInt(a[1]));
	
	
	bw.write("Case #"+(count)+": "+counter);
	bw.close();
	}

}
