package it.simone.google.code.jam2012;

import java.util.HashSet;
import java.util.Set;

public class RecycledNumber implements GoogleCodeExercise {

	int a = 0;
	int b = 0;
	Set<Couple> distinctCouple = null;
	long maxTime = 0;

	private class Couple {
		int x = 0;
		int y = 0;

		public Couple(int x, int y) {
			this.x = x;
			this.y = y;
		}

		@Override
		public int hashCode() {
			final int prime = 31;
			int result = 1;
			result = prime * result + getOuterType().hashCode();
			result = prime * result + x;
			result = prime * result + y;
			return result;
		}

		@Override
		public boolean equals(Object obj) {
			if (this == obj)
				return true;
			if (obj == null)
				return false;
			if (getClass() != obj.getClass())
				return false;
			Couple other = (Couple) obj;
			if (!getOuterType().equals(other.getOuterType()))
				return false;
			if (x == other.x && y == other.y)
				return true;
			if (x == other.y && y == other.x)
				return true;
			return false;
		}

		private RecycledNumber getOuterType() {
			return RecycledNumber.this;
		}

	}

	@Override
	public String execute(String line) {
		int result = 0;

		String[] data = line.split(" ");
		a = Integer.parseInt(data[0]);
		b = Integer.parseInt(data[1]);
		initialize();

		int n = a;
		//
		while (n <= b) {
			result += analize(n);
			n++;
//			if (n % 1000 == 0)
//				System.out.println(n);
		}

		System.out.println(result);
		return "" + result;
	}

	@Override
	public void initialize() {
		distinctCouple = new HashSet<Couple>();
	}

	private int analize(int number) {
		String numString = "" + number;
		initialize();
		for (int i = 1; i < numString.length(); i++) {
			int m = shift(numString, i);
			if (a <= number && number < m && m <= b) {
				Couple couple=new Couple(number,m);
				if (!distinctCouple.contains(couple))
					distinctCouple.add(couple);
			}
		}
		return distinctCouple.size();
	}

	private int shift(String numString, int posx) {

		String result = null;
		result = "" + numString.substring(posx) + numString.substring(0, posx);

		return Integer.parseInt(result.toString());
	}

}

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.InputStreamReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.Queue;
import java.util.StringTokenizer;

public class C {

	
	private void run() throws IOException {
		// put your code here ..
		
		int testcases=nextInt();
		
		int number=1;
		
		

		
		
		while(testcases-->0){
			long answer=0;
			
			int A=nextInt();
			int B=nextInt();
			

			
			

			for (int i = A; i < B; i++) {
				String a=new String(i+"");
				ArrayList<String> hash=new ArrayList<String>();
				for (int j = 1; j < a.length(); j++) {
					String now =a.charAt(a.length()-1)+a.substring(0,a.length()-1);
					int n=Integer.parseInt(now);
					String nlen=n+"";
					
					if(nlen.length()!=now.length()||nlen.equals(a)||n<=i||hash.contains(n+"")){
						a=now;
						continue;
					}
					

					if(n<=B){
						hash.add(n+"");
						answer++;
						
					}
					a=now;
					
				}
				
			}

				
			
			writeln("Case #"+(number++)+": "+answer);
		}
		
		
	}
	
	
	
	
	
	
	
	

	private int nextInt() throws IOException {
		if (!input.hasMoreTokens())input=new StringTokenizer(in.readLine());
		return Integer.parseInt(input.nextToken());
	}
	private long nextLong() throws IOException {
		if (!input.hasMoreTokens())input=new StringTokenizer(in.readLine());
		return Long.parseLong(input.nextToken());
	}
	private double nextDouble() throws IOException {
		if (!input.hasMoreTokens())input=new StringTokenizer(in.readLine());
		return Double.parseDouble(input.nextToken());
	}
	private String nextString() throws IOException {
		if (!input.hasMoreTokens())input=new StringTokenizer(in.readLine());
		return input.nextToken();
	}
	private void write(String output){
		out.write(output);
		out.flush();
	}
	private void writeln(String output){
		out.write(output+"\n");
//		out.flush();
	}
	private void end() throws IOException{
		in.close();
		out.close();
		System.exit(0);
	}
	
	private BufferedReader in;
	private PrintWriter out;
	private StringTokenizer input;
	
	public C() throws IOException {
		//Input Output for Console to be used for trying the test samples of the problem 
//		in = new BufferedReader(new InputStreamReader(System.in));
//		out = new PrintWriter(System.out);
		//-------------------------------------------------------------------------
		//Input Output for File to be used for solving the small and large test files
		in = new BufferedReader(new FileReader("C-large.in"));
		out = new PrintWriter("output3Large.txt");
		//-------------------------------------------------------------------------
		//Initialize Stringtokenizer input
		input = new StringTokenizer(in.readLine());
	}
	
	public static void main(String[] args) throws Exception {
		//-------------------------------------------------------------------------
		//initializing...
		C sol = new C();
		//-------------------------------------------------------------------------
		sol.run();
		//-------------------------------------------------------------------------
		//closing up
		sol.end();
		//--------------------------------------------------------------------------
	}
	
}
