import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.StringTokenizer;

public class ReadFile {
	public static void main(String[] args) throws Exception {
		String srcFile = "C:" + File.separator + "Documents and Settings"
				+ File.separator + "rohit" + File.separator + "My Documents"
				+ File.separator + "Downloads" + File.separator
				+ "C-small-attempt1.in.txt";
		String destFile = "C:" + File.separator + "Documents and Settings"
				+ File.separator + "rohit" + File.separator + "My Documents"
				+ File.separator + "Downloads" + File.separator
				+ "C-small-attempt0.out";
		File file = new File(srcFile);
		List<String> readData = new ArrayList<String>();
		FileReader fileInputStream = new FileReader(file);
		BufferedReader bufferedReader = new BufferedReader(fileInputStream);
		StringBuilder stringBuilder = new StringBuilder();
		String line = null;
		while ((line = bufferedReader.readLine()) != null) {
			readData.add(line);
		}
		stringBuilder.append(generateOutput(readData));
		File writeFile = new File(destFile);
		if (!writeFile.exists()) {
			writeFile.createNewFile();
		}
		FileWriter fileWriter = new FileWriter(writeFile);
		BufferedWriter bufferedWriter = new BufferedWriter(fileWriter);
		bufferedWriter.write(stringBuilder.toString());
		bufferedWriter.close();
		System.out.println("output" + stringBuilder);
	}

	/**
	 * @param number
	 * @return
	 */
	private static String generateOutput(List<String> number) {
		StringBuilder stringBuilder = new StringBuilder();
		for (int i = 0; i < number.size(); i++) {
			if (i == 0) {
				continue;
			} else {
				String tempString = number.get(i);
				String[] temArr = tempString.split(" ");
				stringBuilder.append("Case #" + i + ": ");
				stringBuilder.append(getRecNumbers(temArr[0], temArr[1]));
				stringBuilder.append("\n");
			}
		}
		if (stringBuilder.length() > 0) {
			stringBuilder.deleteCharAt(stringBuilder.length() - 1);
		}
		return stringBuilder.toString();
	}

	// /* This method accepts method for google code jam */
	// private static String method(String value) {
	// int intValue = Integer.valueOf(value);
	// double givenExpr = 3 + Math.sqrt(5);
	// double num = Math.pow(givenExpr, intValue);
	// String valArr[] = (num + "").split("\\.");
	// int finalVal = Integer.valueOf(valArr[0]) % 1000;
	//
	// return String.format("%1$03d", finalVal);
	//
	// }
	//
	// /* This method accepts method for google code jam */
	// private static String method2(String value) {
	// StringTokenizer st = new StringTokenizer(value, " ");
	// String test[] = value.split(" ");
	// StringBuffer str = new StringBuffer();
	//
	// for (int i = 0; i < test.length; i++) {
	// // test[i]=test[test.length-i-1];
	// str.append(test[test.length - i - 1]);
	// str.append(" ");
	// }
	// str.deleteCharAt(str.length() - 1);
	// String strReversedLine = "";
	//
	// while (st.hasMoreTokens()) {
	// strReversedLine = st.nextToken() + " " + strReversedLine;
	// }
	//
	// return str.toString();
	// }

	private static int getRecNumbers(String no1, String no2) {

		int a = Integer.valueOf(no1);
		int b = Integer.valueOf(no2);
		Set<String> dupC = new HashSet<String>();
		for (int i = a; i <= b; i++) {
			int n = i;
			List<String> value = findPerm(n);
			for (String val : value) {
				if (Integer.valueOf(val) <= b && Integer.valueOf(val) >= a
						&& n < Integer.valueOf(val)) {
					dupC.add(n + "-" + val);
				}
			}
		}
		return dupC.size();
	}

	private static List<String> findPerm(int num) {
		String numString = String.valueOf(num);
		List<String> value = new ArrayList<String>();
		for (int i = 0; i < numString.length(); i++) {
			String temp = charIns(numString, i);
			if (!temp.equalsIgnoreCase(numString)) {
				value.add(charIns(numString, i));
			}
		}
		return value;

	}

	public static String charIns(String str, int j) {
		String begin = str.substring(0, j);
		String end = str.substring(j);
		return end + begin;
	}
}
import java.io.*;
import java.util.*;

public class C {
	HashMap map = new HashMap<Character, Character>();

	public static void main(String args[]) {
		try {
			InputStreamReader isr = null;
			try {
				isr = new InputStreamReader(System.in, "UTF-8");
				BufferedReader br = null;
				try {
					br = new BufferedReader(isr);
					new C().solve(br);
				} finally {
					if (br != null) br.close();
				}
			} finally {
				if (isr != null) isr.close();
			}
		} catch (IOException ex) {
			ex.printStackTrace();
			System.exit(1);
		}
	}

	public void solve(BufferedReader br) throws IOException {
		String line = null;
		int T = Integer.parseInt(br.readLine());
		for (int count = 1; count <= T; count++) {
			doOne(count, br.readLine());
		}
	}

	public void doOne(int count, String line) {
		TreeMap<String, List<String>> map =
			new TreeMap<String, List<String>>();
		List<String> list = null;
		List<String> keys = null;
		String key = null;
		String nstr = null;
		String sstr = null;
		String lines[] = line.split(" ");
		int startNum = Integer.parseInt(lines[0]);
		int endNum = Integer.parseInt(lines[1]);
		for (int n = startNum; n <= endNum; n++) {
			nstr = Integer.toString(n);
			keys = makeKeys(nstr);
			key = null;;
			for (int i = 0; i < keys.size(); i++) {
				key = keys.get(i);
				list = map.get(key);
				if (list != null)
					break;
			}
			if (list == null) {
				key = nstr;
				list = new ArrayList<String>();
			}
			list.add(nstr);
			map.put(key, list);
		}

		Set <String>keySet = map.keySet();  
		Iterator <String>keyIte = keySet.iterator();  
		int total = 0;
		while(keyIte.hasNext()) {
			String mapKey = keyIte.next();  
			List<String> data = map.get(mapKey);  
			// System.out.println(mapKey + ":" + data);

			if (data.size() > 1)
				total += data.size() * (data.size() - 1) / 2;
		}

		System.out.println("Case #" + count + ": " + total);
	}

	public List<String> makeKeys(String nstr) {
		List<String>list = new ArrayList<String>();
		char nchar[] = new char[nstr.length()];
		for (int i = 0; i < nchar.length; i++)
			nchar[i] = nstr.charAt(i);
		char kchar[] = new char[nstr.length()];
		for (int startc = 0; startc < nchar.length; startc++) {
			for (int c = 0; c < nchar.length; c++)
				kchar[c] = nchar[(startc + c) % nchar.length];
			list.add(new String(kchar));
		}
		return list;
	}
}
