/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package recyclednumbers;

import java.util.HashSet;

/**
 *
 * @author vandit
 */
public class RecycleNumbers {

    private HashSet<String> numbers = new HashSet<String>();
    private HashSet<String> initialTempNumbers = new HashSet<String>();
    private HashSet<String> finalTempNumbers = new HashSet<String>();

    HashSet<Pair> numberPairs = new HashSet<Pair>();


    private void findRecycledNumbers(int start, int end, int places) {


        for (int i = start; i <= end; i++) {
            String initialNumber = Integer.toString(i);
            //if (!(numbers.contains(initialNumber) || finalTempNumbers.contains(initialNumber))) {

                StringBuffer tempNumber = new StringBuffer(initialNumber);
                int len = tempNumber.length();
                int startIndexToMove = len - places;
                String tempString = tempNumber.substring(startIndexToMove);
                if ((places == 1 && tempString.equals("0")) || tempString.charAt(0) == '0') {
                    continue;
                }
                tempNumber.delete(startIndexToMove, len);
                String finalTempNumber = tempString + tempNumber.toString();

                if (! (finalTempNumber.equals(initialNumber) || Integer.parseInt(finalTempNumber) > end || Integer.parseInt(finalTempNumber) < Integer.parseInt(initialNumber))) {
                    numbers.add(initialNumber);
                    finalTempNumbers.add(finalTempNumber);
                    Pair pair = new Pair(finalTempNumber,initialNumber);
                    numberPairs.add(pair);
                }
            }

        

    }

    public HashSet<Pair> findAllRecycledNumbers(int start, int end) {
        int length = Integer.toString(start).length();
        for (int i = 1; i < length; i++) {
            findRecycledNumbers(start, end, i);
        }
        return numberPairs;
    }
}

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

public class C {

	final static boolean DEBUG = true;
	
	public Object solve () throws IOException {		
		int A = sc.nextInt();
		int B = sc.nextInt();
		
		long cnt = 0;
		for (int n = A; n <= B; ++n) {
			Set<Integer> M = new HashSet<Integer>();
			String s = "" + n;
			int L = s.length();
			for (int i = 0; i < L; ++i) {
				s = s.charAt(L-1) + s.substring(0, L-1);
				int m = Integer.parseInt(s);
				if (m > n && m <= B && M.add(m))
					++cnt;
			}
		}
		return cnt;
	}
	
	void init () {
	}
	
	////////////////////////////////////////////////////////////////////////////////////
	
	public C () throws IOException {
		init();
		int N = sc.nextInt();
		start();
		for (int n = 1; n <= N; ++n)
			print("Case #" + n + ": " + solve());
		exit();
	}
	
	static MyScanner sc;
	static long t;
	
	static void print (Object o) {
		System.out.println(o);
		if (DEBUG)
			System.err.println(o + " (" + ((millis() - t) / 1000.0) + ")");
	}
	
	static void exit () {
		if (DEBUG) {
			System.err.println();
			System.err.println((millis() - t) / 1000.0);
		}
		System.exit(0);
	}
	
	static void run () throws IOException {
		sc = new MyScanner ();
		new C();
	}
	
	public static void main(String[] args) throws IOException {
		run();
	}
	
	static long millis() {
		return System.currentTimeMillis();
	}
	
	static void start() {
		t = millis();
	}
	
	static class MyScanner {
		String next() throws IOException {
			newLine();
			return line[index++];
		}
		
		char [] nextChars() throws IOException {
			return next().toCharArray();
		}
		
		double nextDouble() throws IOException {
			return Double.parseDouble(next());
		}
		
		int nextInt() throws IOException {
			return Integer.parseInt(next());
		}
		
		long nextLong() throws IOException {
			return Long.parseLong(next());
		}
		
		String nextLine() throws IOException {
			line = null;
			return r.readLine();
		}
		
		
		String [] nextStrings() throws IOException {
			line = null;
			return r.readLine().split(" ");
		}
		
		int [] nextInts() throws IOException {
			String [] L = nextStrings();
			int [] res = new int [L.length];
			for (int i = 0; i < L.length; ++i)
				res[i] = Integer.parseInt(L[i]);
			return res;
		}
		
		
		long [] nextLongs() throws IOException {
			String [] L = nextStrings();
			long [] res = new long [L.length];
			for (int i = 0; i < L.length; ++i)
				res[i] = Long.parseLong(L[i]);
			return res;
		}

		boolean eol() {
			return index == line.length;
		}

		//////////////////////////////////////////////
		
		private final BufferedReader r;

		MyScanner () throws IOException {
			this(new BufferedReader(new InputStreamReader(System.in)));
		}
		
		MyScanner(BufferedReader r) throws IOException { 
			this.r = r;
		}
		
		private String [] line;
		private int index;

		private void newLine() throws IOException {
			if (line == null || index == line.length) {
				line = r.readLine().split(" ");
				index = 0;
			}
		}		
	}
	
	static class MyWriter {
		StringWriter sw = new StringWriter();
		PrintWriter pw = new PrintWriter(sw);
		
		void print(Object o) {
			pw.print(o);
		}
		
		void println(Object o) { 
			pw.println(o);
		}
		
		void println() {
			pw.println();
		}
		
		public String toString() {
			return sw.toString();
		}
	}
	
	char [] toArray (Character [] C) {
		char [] c = new char[C.length];
		for (int i = 0; i < C.length; ++i)
			c[i] = C[i];
		return c;
	}

	char [] toArray (Collection<Character> C) {
		char [] c = new char[C.size()]; int i = 0;
		for (char z : C)
			c[i++] = z;
		return c;
	}
	
	Object [] toArray(int [] a) {
		Object [] A = new Object[a.length];
		for (int i = 0; i < A.length; ++i)
			A[i] = a[i];
		return A;
	}
	
	String toString(Object [] a) {
		StringBuffer b = new StringBuffer();
		for (Object o : a)
			b.append(" " + o);
		return b.toString().trim();
	}	
	
	String toString(int [] a) {
		return toString(toArray(a));
	}
}
