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 CSmall {
	public static Set set = new HashSet();
	public static int counter = 0;
	public static void main(String[] args) throws IOException {
		
		Scanner in = new Scanner(new File("C-large.in"));
		PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter("C-small.out")));
		
		int T = Integer.parseInt(in.nextLine());
		for (int i = 0; i < T; i++) {
			String[] lim = in.nextLine().split(" ");
			for (int j = Integer.parseInt(lim[0]); j < Integer.parseInt(lim[1]); j++) {
				if (j >= 10) {
					pair(Integer.toString(j), lim);
				}
			}
			
			out.write("Case #"+ (i+1) +": " + set.size());
			if (i != T-1)
				out.write("\n");
			set.clear();
			
		}	
		//System.out.println("1112".charAt("1112".length()-1) + ("1112".substring(0,"1112".length()-1)));

		out.close();
		System.exit(0);
	}
	
	private static void pair(String num, String[] lim) {
		int len = num.length();
		int upLim = Integer.parseInt(lim[1]), lowLim = Integer.parseInt(lim[0]);
		String k = num;
		for (int i = 0; i < len; i++) {
			num = num.charAt(len-1) + num.substring(0,len-1);
			//System.out.println(num + " " + k);
			//System.out.println(num);
			
			int a = Integer.parseInt(num), b = Integer.parseInt(k);
			
			if (a!=b && a <= upLim && a >= lowLim && b <= upLim && b >= lowLim) {
				if (a<b) {
					set.add(num+" "+k);
				} else {
					set.add(k+" "+num);
				}
			}
		}
		
	}
}