import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;

public class Recycled {
	public static void main(String[] args) throws Exception{
		String inputFile = "C-small-attempt0.in";
		
		BufferedReader input = new BufferedReader(new InputStreamReader(new FileInputStream(inputFile)));
		BufferedWriter output = new BufferedWriter(new OutputStreamWriter(new FileOutputStream("output")));
		long num_cases = Long.parseLong(input.readLine());
		int current_case = 0;
		
		while (current_case < num_cases){
			current_case++;
			
			String[] fields = input.readLine().split(" ");
			int A = Integer.parseInt(fields[0]);
			int B = Integer.parseInt(fields[1]);
			int total = 0;
			
			for (int n = A; n < B; n++){
				for (int m = n+1; m <= B; m++){
					if (isRecycled(n,m)) total++;
				}
			}
			
			System.out.println("Case #" + current_case + ": " + total);
			output.write("Case #" + current_case + ": " + total + "\n");
		}
		output.close();
	}

	private static boolean isRecycled(int n, int m) {
		String sn = ""+n;
		String sm = ""+m;
		if (sn.length() != sm.length()) return false;
		int totaln = 0, totalm = 0;
		for (int i = 0; i < sn.length(); i++){
			totaln += sn.charAt(i);
			totalm += sm.charAt(i);
		}
		if (totaln != totalm) return false;
		for (int i = 0; i < sn.length()-1; i++){
			sm = sm.charAt(sm.length() - 1) + sm.substring(0, sm.length() - 1);
			if (sm.equals(sn)) return true;
		}
		return false;
	}
}

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

/**
 *
 * @author WC
 */
public class RecycledNumbers {

	/**
	 * @param args the command line arguments
	 */
	public static void main(String[] args) {
		(new RecycledNumbers()).findRecycledNumbers("C-small-attempt0.in", "C-small-attempt0.out", "\n");
	}
	
	private void findRecycledNumbers(String filename, String outputFile, String separator) {
		int numberOfTestCases = CodeJamFileManager.getIntFromFirstLineOfFile(filename, separator);
		String[] testCases = CodeJamFileManager.getTextLinesOfFile(filename, separator);
				String output = "";
		for (int i = 1; i <= numberOfTestCases; i++) {
			output += "Case #" + i + ": " + getNumberOfRecycledInts(testCases[i]) + (i != numberOfTestCases ? separator : "");
		}
		CodeJamFileManager.saveOutputFile(output, outputFile, separator);
	}
	
	private int getNumberOfRecycledInts(String testcase) {
		int[] params = getIntArrayFromString(testcase.split(" "));
		int lower = params[0];
		int upper = params[1];
		int currentM = lower + 1;
		int numberOfRecycles = 0;
		while (currentM <= upper) {
			int count = timesRecycled(lower, currentM++);
			numberOfRecycles += count;
		}
		return numberOfRecycles;
	}
	
	private int timesRecycled(int lower, int currentM) {
		String currentMStr = String.valueOf(currentM);
		char[] individualNumbers = currentMStr.toCharArray();
		int timesRecycled = 0;
		for (int i = 1; i < individualNumbers.length; i++) {
			int flip = flip(individualNumbers, i);
			if (flip >= lower && flip < currentM) {
				timesRecycled++;
			}
		}
		return timesRecycled;
	}
	
	private int flip(char[] individualNumbers, int positionsToFlip) {
		char[] flip = new char[individualNumbers.length];
		int startInt = individualNumbers.length - positionsToFlip;
		int flipPos = 0;
		while (startInt < individualNumbers.length) {
			flip[flipPos++] = individualNumbers[startInt++];
		}
		int i = 0;
		while (i < (individualNumbers.length - positionsToFlip)) {
			flip[flipPos++] = individualNumbers[i++];
		}
		return Integer.parseInt(String.valueOf(flip));
	}
	
	private int[] getIntArrayFromString(String[] intStrArray) {
		int[] intArray = new int[intStrArray.length];
		int i = 0;
		for (String intStr : intStrArray) {
			intArray[i++] = Integer.parseInt(intStr);
		}
		return intArray;
	}
}
