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

import java.io.File;
import java.io.FileInputStream;
import java.util.Scanner;

/**
 *
 * @author imgps
 */
public class C {
    public static void main(String args[]) throws Exception{
        int A,B;
        int ctr = 0;
        int testCases;
        
        Scanner sc = new Scanner(new FileInputStream("C-small-attempt0.in "));
        testCases = sc.nextInt();
        int input[][] = new int[testCases][2];
        for(int i=0;i<testCases;i++)
        {
          //  System.out.print("Enter input A B: ");
            input[i][0] = sc.nextInt();
            input[i][1] = sc.nextInt();
            
        }
  

for(int k=0;k<testCases;k++){
      ctr = 0;
      A = input[k][0];
      B = input[k][1];
        for(int i = A;i<=B;i++){
            int num = i;
            int nMul = 1;
            int mul = 1; 
            int tnum = num/10;
            while(tnum > 0){
                mul = mul *10;
                tnum= tnum/10;
            }
            tnum = num;
            int n = 0;
            while(tnum > 0 && mul >= 10){
                nMul = nMul * 10;
                n = (num % nMul) * mul + (num / nMul);
                mul = mul / 10;
                tnum = tnum / 10;
                for(int m=num;m<=B;m++){
                    
                    if(n == m && m > num){
                        ctr++;
                    }
                }
                
                
                
         
            }
        }
        System.out.println("Case #"+(k+1)+": "+ctr);
        
    }
    }
}

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

public class ProblemC {


	public class Case {
		int a, b;

		public void solve(int caseIndex) {

			int length = Integer.toString(a).length();

			int numPairs = 0;

			for (int n = a; n <= b; n++) {
				String ns = Integer.toString(n);
				LinkedHashSet<Integer> distinctMs = new LinkedHashSet<Integer>();

				for (int i = 0; i < length; i++) {
					int m = Integer.parseInt(ns.substring(i) + ns.substring(0, i));
					if (m >= a && m <= b && m > n) {
						distinctMs.add(m);
					}
				}

				numPairs += distinctMs.size();
			}

			println("Case #" + (caseIndex + 1) + ": "+numPairs);
		}

	}

	public void run() throws Exception {

		BufferedReader r = new BufferedReader(new FileReader("input.txt"));
		int numCases = new InputParser(r.readLine()).readInt();

		for (int caseIndex = 0; caseIndex < numCases; caseIndex++) {
			Case c = new Case();

			InputParser p = new InputParser(r.readLine());

			c.a = p.readInt();
			c.b = p.readInt();

			c.solve(caseIndex);
		}

		r.close();
	}

	public static void main(String[] args) throws Exception {
		fileWriter = new PrintWriter(new OutputStreamWriter(new BufferedOutputStream(new FileOutputStream("output.txt"))));
		new ProblemC().run();
		fileWriter.close();
	}

	public static class InputParser {
		String text;
		int pos;

		public InputParser(String text) {
			this.text = text;
		}

		public void skipSpaces() {
			while (pos < text.length()) {
				if (text.charAt(pos) != ' ') break;
				pos++;
			}
		}

		public String readUntil(char expectedChar) {
			StringBuilder b = new StringBuilder();
			while (pos < text.length()) {
				char ch = text.charAt(pos);
				if (ch == expectedChar) break;
				b.append(ch);
				pos++;
			}
			return b.toString();
		}

		public String readToken() {
			skipSpaces();
			return readUntil(' ');
		}

		public int readInt() {
			return Integer.parseInt(readToken());
		}

		public long readLong() {
			return Long.parseLong(readToken());
		}

		public char readChar() {
			char ch = text.charAt(pos);
			pos++;
			return ch;
		}

		public void readExpectedString(String s) {
			for (int i = 0; i < s.length(); i++) {
				char ch = s.charAt(i);
				if (readChar() != ch) throw new RuntimeException("Expected: "+ch);
			}
		}
	}

	public static PrintWriter fileWriter;

	public static void print(String text) {
		fileWriter.print(text);
		System.out.print(text);
	}

	public static void println(String text) {
		fileWriter.println(text);
		System.out.println(text);
	}

	public static <Key, Value> void addToMultiMapArrayList(Key key, Value value, Map<Key, ArrayList<Value>> map) {
		ArrayList<Value> list = map.get(key);
		if (list == null) {
			list = new ArrayList<Value>();
			map.put(key, list);
		}
		list.add(value);
	}

	public static <Key, Value> void addToMultiMapLinkedHashSet(Key key, Value value, Map<Key, LinkedHashSet<Value>> map) {
		LinkedHashSet<Value> list = map.get(key);
		if (list == null) {
			list = new LinkedHashSet<Value>();
			map.put(key, list);
		}
		list.add(value);
	}

	public static <Key, Value> ArrayList<Value> getMultiMapValues(Map<Key, Collection<Value>> map) {
		ArrayList<Value> result = new ArrayList<Value>();
		for (Collection<Value> list : map.values()) {
			result.addAll(list);
		}
		return result;
	}


}
