package fixjava;

public class StringUtils {

	/** Repeat the given string the requested number of times. */
	public static String repeat(String str, int numTimes) {
		StringBuilder buf = new StringBuilder(Math.max(0, str.length() * numTimes));
		for (int i = 0; i < numTimes; i++)
			buf.append(str);
		return buf.toString();
	}

	/**
	 * Pad the left hand side of a field with the given character. Always adds at least one pad character. If the length of str is
	 * greater than numPlaces-1, then the output string will be longer than numPlaces.
	 */
	public static String padLeft(String str, char padChar, int numPlaces) {
		int bufSize = Math.max(numPlaces, str.length() + 1);
		StringBuilder buf = new StringBuilder(Math.max(numPlaces, str.length() + 1));
		buf.append(padChar);
		for (int i = 1, mi = bufSize - str.length(); i < mi; i++)
			buf.append(padChar);
		buf.append(str);
		return buf.toString();
	}

	/**
	 * Pad the right hand side of a field with the given character. Always adds at least one pad character. If the length of str is
	 * greater than numPlaces-1, then the output string will be longer than numPlaces.
	 */
	public static String padRight(String str, char padChar, int numPlaces) {
		int bufSize = Math.max(numPlaces, str.length() + 1);
		StringBuilder buf = new StringBuilder(Math.max(numPlaces, str.length() + 1));
		buf.append(str);
		buf.append(padChar);
		while (buf.length() < bufSize)
			buf.append(padChar);
		return buf.toString();
	}

	/** Intern all strings in an array, skipping null elements. */
	public static String[] intern(String[] arr) {
		for (int i = 0; i < arr.length; i++)
			arr[i] = arr[i].intern();
		return arr;
	}

	/** Intern a string, ignoring null */
	public static String intern(String str) {
		return str == null ? null : str.intern();
	}

}

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.HashSet;
import java.util.Set;

public class Recycled {

  public static void main(String[] args) throws IOException {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    String line = br.readLine();
    int t = Integer.parseInt(line);
    for (int i = 0; i < t; i++) {
      Set<String> set = new HashSet<String>();
      line = br.readLine();
      String[] split = line.split(" ");
      int A = Integer.parseInt(split[0]);
      int B = Integer.parseInt(split[1]);
      int digits = String.valueOf(A).length();
      if (digits != 1){
        for (int j = A; j <= B; j++) {
          String oldString = String.valueOf(j);
//          System.out.println("AA  " + oldString);
          for (int j2 = 1; j2 < digits; j2++) {
            String newString = oldString.substring(j2).concat(oldString.substring(0, j2));
            if(newString.charAt(0) == '0')continue;
            int newInt = Integer.valueOf(newString);
            if (newInt >= A && newInt <= B && j<newInt) {
//              System.out.println("BBB  " + newString);
              set.add(oldString+newString);
            }
          }
        }
      }
      System.out.println("Case #" + (i + 1) + ": " + set.size());
    }
  }

}
