import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

class RecycledNumbers{
	
	
	
	int getcount(int small,int large){
		int count = 0;
		for(int currnum = small; currnum < large; currnum++){
			int permut = currnum;
			int no_of_digits = 0;
			while(permut > 0){
				permut = permut/10;
				no_of_digits++;
			}
			int lastDigit = currnum % 10;
			permut = currnum / 10;
			permut = permut + lastDigit * (int)Math.pow(10, no_of_digits-1);
			while(permut != currnum){
				
				if(permut >= currnum && permut <= large){
					
					count++;
				}
				lastDigit = permut % 10;
				permut = permut / 10;
				permut = permut + lastDigit * (int)Math.pow(10, no_of_digits-1);
				
			}
			
		}
		
		return count;
	}
	
	public static void main(String args[]){
		RecycledNumbers d = new RecycledNumbers();
		
		int no_of_cases = 0;
		String input = "";
		
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		try{
			no_of_cases = Integer.parseInt(br.readLine());
		}
		catch(Exception e){
			System.out.println("First line is not a number");
		}
		
		for(int i=1; i <= no_of_cases;i++){
			try{
				input = br.readLine();
			}
			catch(Exception e){
				System.out.println("Number of test cases different from the number mentioned in first line");
			}
			
			System.out.print("Case #" +i+": ");
			
			StringTokenizer t =  new StringTokenizer(input);
			int small=0,large=0;
			if(t.hasMoreTokens()){
				small = Integer.parseInt(t.nextToken());
			}
			if(t.hasMoreTokens()){
				large = Integer.parseInt(t.nextToken());
			}
			System.out.println(d.getcount(small,large));
			
		}
		
		
		

	}
	
	
}
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));
	}
}
