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.math.BigInteger;
import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;


public class C {
	private static Scanner sc;
	
	public static void main(String[] args) {
		sc = new Scanner(System.in);
		int t = sc.nextInt();
		for (int i = 0; i < t; i++) System.out.printf("Case #%d: %s\n", i + 1, exec());
	}
	
	public static String exec() {
		long now = System.currentTimeMillis();
		int a = sc.nextInt();
		int b = sc.nextInt();
		BigInteger result = BigInteger.ZERO;
		
		Set<Integer> x = new HashSet<Integer>();
		for (int i = a; i < b; i++) {
			x.clear();
			String s = String.valueOf(i);
			for (int j = 1; j < s.length(); j++) {
				String q = s.substring(j) + s.substring(0, j);
				int qs = Integer.valueOf(q);
				if (qs <= i) continue;
				if (qs > b) continue;
				boolean success = x.add(qs);
				if (success) result = result.add(BigInteger.ONE);
			}
		}
		
		long taken = System.currentTimeMillis() - now;
//		System.err.println("TIME TAKEN: " + taken + " -- * 50 = " + (50 * taken) + " -- 8 min = " + (1000L * 60 * 8));
		return result.toString();
	}
}
