import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;


public class GoogleC {
	public String szamol(String input){
		String result="";
		String a=input;
		Integer min=Integer.parseInt(a.substring(0,a.indexOf(' ')));
		a=a.substring(a.indexOf(' ')+1);
		Integer max=Integer.parseInt(a);
		Long count=0l;
		for(Integer i=min; i<=max; i++){
			String e1=i.toString();
			Set<Integer> db=new HashSet<Integer>(); 
			for (int j=1; j<e1.length();j++){
				
				String e2=e1.substring(j)+e1.substring(0,j);
				Integer k=Integer.parseInt(e2);
				if (k>i && k<=max){
					db.add(k);
					//System.out.println(e1+"\t"+e2);
				}
				
			}
			count+=db.size();
		}
		
		return count.toString();
	}
	public static void main(String[] args) {
		GoogleC a=new GoogleC();
		//String filename="input.txt";
		//String filename="C-small-attempt0.in";
		String filename="C-large.in";
		String thisLine;
		try {
			BufferedReader br = new BufferedReader(new FileReader(filename));
			BufferedWriter bw= new BufferedWriter(new FileWriter(filename+".out"));
			thisLine=br.readLine();
			Integer tnum=Integer.parseInt(thisLine);
		     for(int i=0;i<tnum;i++) { // while loop begins here
		    	 	thisLine=br.readLine();
		           System.out.println(thisLine);
		           System.out.println("Case #"+(i+1)+": "+a.szamol(thisLine)+"\n");
		           bw.write("Case #"+(i+1)+": "+a.szamol(thisLine)+"\n");
		         } // end while 
		        // end try
		     br.close();
		     bw.close();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}


	}

}

import java.io.*;
import java.util.*;

public class C {
	
	public static BufferedReader in;
	public static StringTokenizer st;

	public static void main(String[] args) throws IOException{
		in = new BufferedReader(new FileReader("C.in"));
		PrintWriter out = new PrintWriter(new FileWriter("C.out"));
		
		int test = readInt();
		for (int t=1; t<=test; t++){
			out.print("Case #"+t+": ");
			
			int start = readInt(), end = readInt();
			
			int counter=0;
			for (int i=start; i<=end; i++){
				counter += test(i, start, end);
			}
			out.println(counter);
		}
		
		in.close();
		out.close();
	}
	
	public static String readLine() throws IOException{
		return in.readLine();
	}
	
	public static String readToken() throws IOException{
		if (st==null || !st.hasMoreTokens())
			st = new StringTokenizer(readLine());
		
		return st.nextToken();
	}
	
	public static int readInt() throws IOException{
		return Integer.parseInt(readToken());
	}
	
	public static int test(int i, int start, int end){
		int curr = i;
		int ret =0;
		int numDigits = String.valueOf(i).length();
		int mult = (int)Math.pow(10, numDigits-1);
		do{
			int last = curr%10;
			curr = curr/10 + last*mult;
			if (curr>i && curr<=end) ret++;
		}while(curr!=i);
		return ret;
	}
}
